Instant messaging

Form of communication over the Internet

This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.
Find sources: "Instant messaging" – news · newspapers · books · scholar · JSTOR (October 2016) (Learn how and when to remove this template message)

|

A classic example of instant messaging on a desktop computer: the left window of this software showing a list of contacts ("buddy list") and the right window an active IM conversation

Instant messaging (IM) technology is a type of online chat allowing real-time text transmission over the Internet or another computer network. Messages are typically transmitted between two or more parties, when each user inputs text and triggers a transmission to the recipient(s), who are all connected on a common network. It differs from email in that conversations over instant messaging happen in real-time (hence "instant"). Most modern IM applications (sometimes called "social messengers", "messaging apps" or "chat apps") use push technology and also add other features such as emojis (or graphical smileys), file transfer, chatbots, voice over IP, or video chat capabilities.

Instant messaging systems tend to facilitate connections between specified known users (often using a contact list also known as a "buddy list" or "friend list"), and can be standalone applications or integrated into e.g. a wider social media platform, or a website where it can for instance be used for conversational commerce. IM can also consist of conversations in "chat rooms". Depending on the IM protocol, the technical architecture can be peer-to-peer (direct point-to-point transmission) or client–server (an IM service center retransmits messages from the sender to the communication device). It is usually distinguished from text messaging which is typically simpler and normally uses cellular phone networks.

Instant messaging applications can store messages with either local-based device storage (e.g WhatsApp, Viber, Line, WeChat, Signal etc.) or cloud-based server storage (e.g Telegram, Skype, Facebook Messenger, Google Hangouts, Discord, Slack etc.).

Instant messaging was pioneered in the early Internet era; the IRC protocol was the earliest to achieve wide adoption.[1] Later in the 1990s, ICQ was among the first closed and commercialized instant messengers, and several rival services appeared afterwards as it became a popular use of the Internet.[2] Beginning with its first introduction in 2005, BlackBerry Messenger, which initially had been available only on BlackBerry smartphones, soon became one of the most popular mobile instant messaging apps worldwide. BBM was for instance the most used mobile messaging app in the United Kingdom[3] and Indonesia.[4] Instant messaging remains very popular today; IM apps are the most widely used smartphone apps: in 2018 there were over 50 million Signal users, 980 million monthly active users of WeChat and 1.3 billion monthly users of WhatsApp Messenger.

## Contents

* 1 Overview
* 1.1 Clients
* 1.2 Features
* 1.2.1 Private and group messaging
* 1.2.2 Calling
* 1.2.3 Games and entertainment
* 1.2.4 Payments
* 2 History
* 3 Interoperability
* 4 Effects of IM on communication
* 4.1 Effects on workplace communication
* 4.2 IM language
* 5 Business application
* 6 Comparison to SMS
* 7 Security and archiving
* 7.1 Encryption
* 7.2 Compliance risks
* 8 User base
* 8.1 More than 100 million users
* 8.2 Other platforms
* 8.3 Closed services and such with unclear activity
* 9 See also
* 10 References
* 11 External links

## Overview[edit | edit source]

This section needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (September 2014) (Learn how and when to remove this template message)

|

Instant messaging is a set of communication technologies used for text-based communication between two (private messaging) or more (chat room) participants over the Internet or other types of networks (see also LAN messenger). IM–chat happens in real-time. Of importance is that online chat and instant messaging differ from other technologies such as email due to the perceived quasi-synchrony of the communications by the users. Some systems permit messages to be sent to users not then 'logged on' (offline messages), thus removing some differences between IM and email (often done by sending the message to the associated email account).[5]

IM allows effective and efficient communication, allowing immediate receipt of acknowledgment or reply. However IM is basically not necessarily supported by transaction control. In many cases, instant messaging includes added features which can make it even more popular. For example, users may see each other via webcams, or talk directly for free over the Internet using a microphone and headphones or loudspeakers. Many applications allow file transfers, although they are usually limited in the permissible file-size.[6] It is usually possible to save a text conversation for later reference. Instant messages are often logged in a local message history, making it similar to the persistent nature of emails.

Major IM services are controlled by their corresponding companies. They usually follow the client–server model when all clients have to first connect to the central server. This requires users to trust this server because messages can generally be accessed by the company. Companies can be compelled to reveal their user's communication.[7] Companies can also suspend user accounts for any reason.

Non-IM types of chat include multicast transmission, usually referred to as "chat rooms", where participants might be anonymous or might be previously known to each other (for example collaborators on a project that is using chat to facilitate communication).

An instant message service center (IMSC) is a network element in the mobile telephone network which delivers instant messages. When a user sends an IM message to another user, the phone sends the message to the IMSC. The IMSC stores the message and delivers it to the destination user when they are available. The IMSC usually has a configurable time limit for how long it will store the message. Few companies who make many of the IMSCs in use in the GSM world are Miyowa, Followap and OZ. Other players include Acision, Colibria, Ericsson, Nokia, Comverse Technology, Now Wireless, Jinny Software, Miyowa, Feelingk and few others.

The term "Instant Messenger" is a service mark of Time Warner[8] and may not be used in software not affiliated with AOL in the United States. For this reason, in April 2007, the instant messaging client formerly named Gaim (or gaim) announced that they would be renamed "Pidgin".[9]

### Clients[edit | edit source]

Instant messengers by protocol

This section needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (October 2016) (Learn how and when to remove this template message)

|

See also: Comparison of instant messaging clients and Comparison of user features of messaging platforms

Each modern IM service generally provides its own client, either a separately installed piece of software, or a browser-based client. They are normally centralised networks run by the servers of the platform's operators, unlike peer-to-peer protocols like XMPP. These usually only work within the same IM network, although some allow limited function with other services. Third party client software applications exist that will connect with most of the major IM services. There is the class of instant messengers that uses the serverless model, which doesn't require servers, and the IM network consists only of clients. There are several serverless messengers: RetroShare, Tox, Bitmessage, Ricochet, Ring.

Some examples of popular IM services today include Signal, Telegram, WhatsApp Messenger, WeChat, QQ Messenger, Viber, Line, and Snapchat. The popularity of certain apps greatly differ between different countries. Certain apps have emphasis on certain uses - for example Skype focuses on video calling, Slack focuses on messaging and file sharing for work teams, and Snapchat focuses on image messages. Some social networking services offer messaging services as a component of their overall platform, such as Facebook's Facebook Messenger, who also own WhatsApp. While others have a direct messaging function as an additional adjunct component of their social networking platforms, like Instagram, Reddit, Tumblr, TikTok, Clubhouse and Twitter, either directly or through chat rooms.

### Features[edit | edit source]

File:Pidgin screenshot.png

A buddy list on Pidgin

#### Private and group messaging[edit | edit source]

Private chat allows private conversation with another person or a group. The privacy aspect can also be enhanced in a number of ways such as end to end encryption by default like Signal. Or some applications have a timer feature, like Snapchat, where messages, conversations or files such as photos are automatically deleted from the users phone once the time limit is reached. Public and group chat features allow users to communicate with multiple people at a time.

#### Calling[edit | edit source]

Many major IM services and applications offer the call feature for user-to-user calls, conference calls, and voice messages. The call functionality is useful for professionals who utilize the application for work purposes and as a hands-free method. Videotelephony using a webcam is also possible by some.

#### Games and entertainment[edit | edit source]

Some IM applications include in-app games for entertainment. Yahoo! Messenger for example introduced these where users could play a game and viewed by friends in real-time.[10] The Messenger application has a built in option to play computer games with people in a chat, including games like Tetris and Blackjack.

#### Payments[edit | edit source]

Though a relatively new feature, peer-to-peer payments are available on major messaging platforms. This functionality allows individuals to use one application for both communication and financial tasks. The lack of a service fee also makes messaging apps advantageous to financial applications. Major platforms such as Facebook messenger and WeChat already offer a payment feature, and this functionality is likely to become a standard amongst IM apps competing in the market.

## History[edit | edit source]

This section needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (January 2012) (Learn how and when to remove this template message)

|

Release years of instant messengers1988| Internet Relay Chat

|

1989
1990
1991
1992
1993
1994
1995
1996| ICQ
1997| AIM
1998| Yahoo! Messenger
1999| XMPP
MSN Messenger
2000
2001
2002
2003| Xfire
2004
2005
2006
2007
2008
2009| WhatsApp
2010| Kik Messenger
2011| Facebook Messenger
Snapchat
2012
2013| Telegram
2014| Facebook buys WhatsApp
Signal
2015| Discord
2016
2017
2018
2019
2020| ShazzleChat

File:PLATO-Talkomatic.png

2014 recreation screenshot of the original Talkomatic program, released in 1973, on the PLATO system (on an orange plasma display).

Though the term dates from the 1990s, instant messaging predates the Internet, first appearing on multi-user operating systems like Compatible Time-Sharing System (CTSS) and Multiplexed Information and Computing Service (Multics)[11][12] in the mid-1960s. Initially, some of these systems were used as notification systems for services like printing, but quickly were used to facilitate communication with other users logged into the same machine. CTSS facilitated communication via text message for up to 30 people.[13]

Parallel to instant messaging were early online chat facilities, the earliest of which was Talkomatic (1973) on the PLATO system, which allowed 5 people to chat simultaneously on a 512x512 plasma display (5 lines of text + 1 status line per person). During the bulletin board system (BBS) phenomenon that peaked during the 1980s, some systems incorporated chat features which were similar to instant messaging; Freelancin' Roundtable was one prime example. The first[14] such general-availability commercial online chat service (as opposed to PLATO, which was educational) was the CompuServe CB Simulator in 1980,[15] created by CompuServe executive Alexander "Sandy" Trevor in Columbus, Ohio.

As networks developed, the protocols spread with the networks. Some of these used a peer-to-peer protocol (e.g. talk, ntalk and ytalk), while others required peers to connect to a server (see talker and IRC). The Zephyr Notification Service (still in use at some institutions) was invented at MIT's Project Athena in the 1980s to allow service providers to locate and send messages to users.

Early instant messaging programs were primarily real-time text, where characters appeared as they were typed. This includes the Unix "talk" command line program, which was popular in the 1980s and early 1990s. Some BBS chat programs (i.e. Celerity BBS) also used a similar interface. Modern implementations of real-time text also exist in instant messengers, such as AOL's Real-Time IM[16] as an optional feature.[17]

File:Unix talk screenshot 01.png

Command-line Unix "talk", using a split screen user interface, was popular in the 1980s and early 1990s.

In the latter half of the 1980s and into the early 1990s, the Quantum Link online service for Commodore 64 computers offered user-to-user messages between concurrently connected customers, which they called "On-Line Messages" (or OLM for short), and later "FlashMail." Quantum Link later became America Online and made AOL Instant Messenger (AIM, discussed later). While the Quantum Link client software ran on a Commodore 64, using only the Commodore's PETSCII text-graphics, the screen was visually divided into sections and OLMs would appear as a yellow bar saying "Message From:" and the name of the sender along with the message across the top of whatever the user was already doing, and presented a list of options for responding.[18] As such, it could be considered a type of graphical user interface (GUI), albeit much more primitive than the later Unix, Windows and Macintosh based GUI IM software. OLMs were what Q-Link called "Plus Services" meaning they charged an extra per-minute fee on top of the monthly Q-Link access costs.

Modern, Internet-wide, GUI-based messaging clients as they are known today, began to take off in the mid-1990s with PowWow, ICQ, and AOL Instant Messenger. Similar functionality was offered by CU-SeeMe in 1992; though primarily an audio/video chat link, users could also send textual messages to each other. AOL later acquired Mirabilis, the authors of ICQ; establishing dominance in the instant messaging market.[13] A few years later ICQ (then owned by AOL) was awarded two patents for instant messaging by the U.S. patent office. Meanwhile, other companies developed their own software; (Excite, MSN, Ubique, and Yahoo!), each with its own proprietary protocol and client; users therefore had to run multiple client applications if they wished to use more than one of these networks. In 1998, IBM released IBM Lotus Sametime, a product based on technology acquired when IBM bought Haifa-based Ubique and Lexington-based Databeam.

In 2000, an open-source application and open standards-based protocol called Jabber was launched. The protocol was standardized under the name Extensible Messaging and Presence Protocol (XMPP). XMPP servers could act as gateways to other IM protocols, reducing the need to run multiple clients. Multi-protocol clients can use any of the popular IM protocols by using additional local libraries for each protocol. IBM Lotus Sametime's November 2007 release added IBM Lotus Sametime Gateway support for XMPP.

Video calling using a webcam also started taking off during this time. Microsoft NetMeeting was one of the earliest, but Skype released in 2003 was one of the first that focused on this features and brought it to a wider audience.[19]

By 2006, AIM controlled 52 percent of the instant messaging market, but rapidly declined shortly thereafter as the company struggled to compete with other services.[13]

File:Blackberry-Messenger-Logo.png

BlackBerry Messenger

File:Facebook chat screenshot (English).png

Facebook Chat, example of IM through a wider social network that became popular in the late 2000s

By 2010, instant messaging over the Web was in sharp decline in favor of messaging features on social networks.[20] Social networking providers often offer IM abilities, for example Facebook Chat, while Twitter can be thought of as a Web 2.0 instant messaging system. Similar server-side chat features are part of most dating websites, such as OKCupid or PlentyofFish. The former most popular IM platforms were terminated in later years, such as AIM.[21]

The popularity of instant messaging was soon revived with new services in the form of mobile applications, notable examples of the time being BlackBerry Messenger (first released in 2005; today available as BlackBerry Messenger Enterprise) and WhatsApp (first released in 2009). Unlike previous IM applications, these newer ones usually ran only on mobile devices and coincided with the rising popularity of Internet-enabled smartphones; this led to IM surpassing SMS in message volume by 2013.[13] By 2014, IM had more users than social networks.[22] In January 2015, the service WhatsApp alone accommodated 30 billion messages daily in comparison to about 20 billion for SMS.[13]

In 2016, Google introduced a new intelligent messaging app that incorporated machine learning technology called Allo.[23] Google Allo was shut down on March 12, 2019.[24]

## Interoperability[edit | edit source]

This section needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (January 2012) (Learn how and when to remove this template message)

|

Pidgin's tabbed chat window in Linux

Standard complementary instant messaging applications offer functions like file transfer, contact list(s), the ability to hold several simultaneous conversations, etc. These may be all the functions that a small business needs, but larger organizations will require more sophisticated applications that can work together. The solution to finding applications capable of this is to use enterprise versions of instant messaging applications. These include titles like XMPP, Lotus Sametime, Microsoft Office Communicator, etc., which are often integrated with other enterprise applications such as workflow systems. These enterprise applications, or enterprise application integration (EAI), are built to certain constraints, namely storing data in a common format.

There have been several attempts to create a unified standard for instant messaging: IETF's Session Initiation Protocol (SIP) and SIP for Instant Messaging and Presence Leveraging Extensions (SIMPLE), Application Exchange (APEX), Instant Messaging and Presence Protocol (IMPP), the open XML-based Extensible Messaging and Presence Protocol (XMPP), and Open Mobile Alliance's Instant Messaging and Presence Service developed specifically for mobile devices.

Most attempts at producing a unified standard for the major IM providers (AOL, Yahoo! and Microsoft) have failed, and each continues to use its own proprietary protocol.

However, while discussions at IETF were stalled, Reuters signed the first inter-service provider connectivity agreement in September 2003. This agreement enabled AIM, ICQ and MSN Messenger users to talk with Reuters Messaging counterparts and vice versa. Following this, Microsoft, Yahoo! and AOL agreed to a deal in which Microsoft's Live Communications Server 2005 users would also have the possibility to talk to public instant messaging users. This deal established SIP/SIMPLE as a standard for protocol interoperability and established a connectivity fee for accessing public instant messaging groups or services. Separately, on October 13, 2005, Microsoft and Yahoo! announced that by the 3rd quarter of 2006 they would interoperate using SIP/SIMPLE, which was followed, in December 2005, by the AOL and Google strategic partnership deal in which Google Talk users would be able to communicate with AIM and ICQ users provided they have an AIM account.

There are two ways to combine the many disparate protocols:

* Combine the many disparate protocols inside the IM client application.
* Combine the many disparate protocols inside the IM server application. This approach moves the task of communicating with the other services to the server. Clients need not know or care about other IM protocols. For example, LCS 2005 Public IM Connectivity. This approach is popular in XMPP servers; however, the so-called transport projects suffer the same reverse engineering difficulties as any other project involved with closed protocols or formats.

Some approaches allow organizations to deploy their own, private instant messaging network by enabling them to restrict access to the server (often with the IM network entirely behind their firewall) and administer user permissions. Other corporate messaging systems allow registered users to also connect from outside the corporation LAN, by using an encrypted, firewall-friendly, HTTPS-based protocol. Usually, a dedicated corporate IM server has several advantages, such as pre-populated contact lists, integrated authentication, and better security and privacy.

Certain networks have made changes to prevent them from being used by such multi-network IM clients. For example, Trillian had to release several revisions and patches to allow its users to access the MSN, AOL, and Yahoo! networks, after changes were made to these networks. The major IM providers usually cite the need for formal agreements, and security concerns as reasons for making these changes.

The use of proprietary protocols has meant that many instant messaging networks have been incompatible and users have been unable to reach users on other networks.[25] This may have allowed social networking with IM-like features and text messaging an opportunity to gain market share at the expense of IM.[26]

## Effects of IM on communication[edit | edit source]

Messaging applications have affected the way people communicate on their devices. A survey conducted by MetrixLabs showed that messaging applications 63% of Baby Boomers, 63% of Generation X, and 67% of Generation Y said that they used messaging applications in place of texting.[27] A Facebook survey showed that 65% of people surveyed thought that messaging applications made group messaging easier.[28]

### Effects on workplace communication[edit | edit source]

Messaging applications have also changed how people communicate in the workplace. Enterprise messaging applications like Slack, TeleMessage, Teamnote and Yammer allow companies to enforce policies on how employees message at work and ensure secure storage of sensitive data.[29] Message applications allow employees to separate work information from their personal emails and texts.

Messaging applications may make workplace communication efficient, but they can also have consequences on productivity. A study at Slack showed on average, people spend 10 hours a day on Slack, which is about 67% more time than they spend using email.[30]

### IM language[edit | edit source]

See also: SMS language

Users sometimes make use of internet slang or text speak to abbreviate common words or expressions to quicken conversations or reduce keystrokes. The language has become widespread, with well-known expressions such as 'lol' translated over to face-to-face language.

Emotions are often expressed in shorthand, such as the abbreviation LOL, BRB and TTYL; respectively laugh(ing) out loud, be right back, and talk to you later.

Some, however, attempt to be more accurate with emotional expression over IM. Real time reactions such as (chortle) (snort) (guffaw) or (eye-roll) are becoming more popular. Also there are certain standards that are being introduced into mainstream conversations including, '#' indicates the use of sarcasm in a statement and '*' which indicates a spelling mistake and/or grammatical error in the prior message, followed by a correction.[31]

## Business application[edit | edit source]

Instant messaging has proven to be similar to personal computers, email, and the World Wide Web, in that its adoption for use as a business communications medium was driven primarily by individual employees using consumer software at work, rather than by formal mandate or provisioning by corporate information technology departments. Tens of millions of the consumer IM accounts in use are being used for business purposes by employees of companies and other organizations.

In response to the demand for business-grade IM and the need to ensure security and legal compliance, a new type of instant messaging, called "Enterprise Instant Messaging" ("EIM") was created when Lotus Software launched IBM Lotus Sametime in 1998. Microsoft followed suit shortly thereafter with Microsoft Exchange Instant Messaging, later created a new platform called Microsoft Office Live Communications Server, and released Office Communications Server 2007 in October 2007. Oracle Corporation also jumped into the market with its Oracle Beehive unified collaboration software.[32] Both IBM Lotus and Microsoft have introduced federation between their EIM systems and some of the public IM networks so that employees may use one interface to both their internal EIM system and their contacts on AOL, MSN, and Yahoo. As of 2010, leading EIM platforms include IBM Lotus Sametime, Microsoft Office Communications Server, Jabber XCP and Cisco Unified Presence.[third-party source needed] Industry-focused EIM platforms such as Reuters Messaging and Bloomberg Messaging also provide IM abilities to financial services companies.[third-party source needed]

The adoption of IM across corporate networks outside of the control of IT organizations creates risks and liabilities for companies who do not effectively manage and support IM use. Companies implement specialized IM archiving and security products and services to mitigate these risks and provide safe, secure, productive instant messaging abilities to their employees. IM is increasingly becoming a feature of enterprise software rather than a stand-alone application.

IM products can usually be categorised into two types: Enterprise Instant Messaging (EIM)[33] and Consumer Instant Messaging (CIM).[34] Enterprise solutions use an internal IM server, however this is not always feasible, particularly for smaller businesses with limited budgets. The second option, using a CIM provides the advantage of being inexpensive to implement and has little need for investing in new hardware or server software.

For corporate use, encryption and conversation archiving are usually regarded as important features due to security concerns.[35] There are also a bunch of open source encrypting messengers.[36] Sometimes the use of different operating systems in organizations requires use of software that supports more than one platform. For example, many software companies use Windows in administration departments but have software developers who use Linux.

## Comparison to SMS[edit | edit source]

A user of a mobile device communicating with an instant messenger rather than SMS

SMS is the acronym for “short message service” and allows mobile phone users to send text messages without an Internet connection, while instant messaging provides similar services through an Internet connection.[13] SMS was a much more dominant form of communication before, when smartphones became widely used globally. While SMS relied on traditional paid telephone services, instant messaging apps on mobiles were available for free or a minor data charge. In 2012 SMS volume peaked, and in 2013 chat apps surpassed SMS in global message volume.[37]

Easier group messaging was another advantage of smartphone messaging apps and also contributed to their adoption. Before the introduction of messaging apps, smartphone users could only participate in single-person interactions via mobile voice calls or SMS. With the introduction of messaging apps, the group chat functionality allows all the members to see an entire thread of everyone's responses. Members can also respond directly to each other, rather than having to go through the member who started the group message, to relay the information.[38]

However, SMS still remains popular in the United States because it is usually included free in monthly phone bundles.[39] While SMS volumes in some countries like Denmark, Spain and Singapore dropped up to two-thirds from 2011 to 2013, in the United States SMS use only dropped by about one quarter.[39]

## Security and archiving[edit | edit source]

See also: Secure instant messaging

Crackers (malicious or black hat hackers) have consistently used IM networks as vectors for delivering phishing attempts, drive-by URLs, and virus-laden file attachments from 2004 to the present, with over 1100 discrete attacks listed by the IM Security Center[40] in 2004–2007. Hackers use two methods of delivering malicious code through IM: delivery of viruses, trojan horses, or spyware within an infected file, and the use of "socially engineered" text with a web address that entices the recipient to click on a URL connecting him or her to a website that then downloads malicious code.

Viruses, computer worms, and trojans usually propagate by sending themselves rapidly through the infected user's contact list. An effective attack using a poisoned URL may reach tens of thousands of users in a short period when each user's contact list receives messages appearing to be from a trusted friend. The recipients click on the web address, and the entire cycle starts again. Infections may range from nuisance to criminal, and are becoming more sophisticated each year.

IM connections sometimes occur in plain text, making them vulnerable to eavesdropping. Also, IM client software often requires the user to expose open UDP ports to the world, raising the threat posed by potential security vulnerabilities.[41]

In the early 2000s, a new class of IT security provider emerged to provide remedies for the risks and liabilities faced by corporations who chose to use IM for business communications. The IM security providers created new products to be installed in corporate networks for the purpose of archiving, content-scanning, and security-scanning IM traffic moving in and out of the corporation. Similar to the e-mail filtering vendors, the IM security providers focus on the risks and liabilities described above.

With rapid adoption of IM in the workplace, demand for IM security products began to grow in the mid-2000s. By 2007, the preferred platform for the purchase of security software had become the "computer appliance", according to IDC, who estimated that by 2008, 80% of network security products would be delivered via an appliance.[42]

By 2014 however, the level of safety offered by instant messengers was still extremely poor. According to a scorecard made by the Electronic Frontier Foundation, only 7 out of 39 instant messengers received a perfect score, whereas the most popular instant messengers at the time only attained a score of 2 out of 7.[43][44] A number of studies have shown that IM services are quite vulnerable for providing user privacy.[45][46]

### Encryption[edit | edit source]

Encryption is the primary method that messaging apps use to protect user's data privacy and security. SMS messages are not encrypted, making them insecure, as the content of each SMS message is visible to mobile carriers and governments and can be intercepted by a third party.[47] SMS messages also leak metadata, or information about the message that is not the message content itself, such as phone numbers of the sender and recipient, which can identify the people involved in the conversation.[47] SMS messages can also be spoofed and the sender of the message can be edited to impersonate another person.[47]

Messaging applications on the market that use end-to-end encryption include Signal, WhatsApp, Wire and iMessage.[47][better source needed] Applications that have been criticized for lacking or poor encryption methods include Telegram and Confide, as both are prone to error or not having encryption enabled by default.[47]

### Compliance risks[edit | edit source]

In addition to the malicious code threat, the use of instant messaging at work also creates a risk of non-compliance to laws and regulations governing use of electronic communications in businesses.

In the United States alone there are over 10,000 laws and regulations related to electronic messaging and records retention.[48] The better-known of these include the Sarbanes–Oxley Act, HIPAA, and SEC 17a-3.

Clarification from the Financial Industry Regulatory Authority (FINRA) was issued to member firms in the financial services industry in December, 2007, noting that "electronic communications", "email", and "electronic correspondence" may be used interchangeably and can include such forms of electronic messaging as instant messaging and text messaging.[49] Changes to Federal Rules of Civil Procedure, effective December 1, 2006, created a new category for electronic records which may be requested during discovery in legal proceedings.

Most nations also regulate use of electronic messaging and electronic records retention in similar fashion as the United States. The most common regulations related to IM at work involve the need to produce archived business communications to satisfy government or judicial requests under law. Many instant messaging communications fall into the category of business communications that must be archived and retrievable.

## User base[edit | edit source]

This article's factual accuracy may be compromised due to out-of-date information. Please help update this article to reflect recent events or newly available information. (March 2015)

|

As of March 2022, the most used messaging apps worldwide include: Signal with 100 million, Line with 217 million, Viber with 260 million, Telegram with 700 million, WeChat with 1.2 billion, Facebook Messenger with 1.3 billion, and WhatsApp with 2.0 billion users.[50] There are 25 countries in the world where WhatsApp messenger is not the market leader in messaging apps, such as the United States, Canada, Australia, New Zealand, Denmark, Norway, Sweden, Hungary, Lithuania, Poland, Slovakia, Philippines, and China.[50] [51] [52]

Messaging apps have varying levels of adoption in different countries. As of April 2022: [53][54]

* WhatsApp by Meta Platforms is the most popular messaging app in several countries in South America, Western Europe, Africa, Middle East, South Asia, and Southeast Asia.
* Facebook Messenger by Meta Platforms is the most popular messaging app in North America, Northern Europe, some Central Europe countries, and Oceania.
* Telegram is the most popular messaging app in several Eastern Europe countries, and the second preferred option after WhatsApp in several countries in Western Europe, Middle East, South Asia, Southeast Asia, Africa, Central and South America.
* Viber by Rakuten has a strong presence in Central and Eastern Europe (Bulgaria, Greece, Serbia, Ukraine, Russia). It is also moderately successful in Philippines and Vietnam.[55] [56] [57]
* Line by Naver Corporation is used widely in some countries in Asia (Japan, Taiwan, Thailand).
* Messaging apps that are predominately used in only one country include: KakaoTalk in South Korea, Zalo in Vietnam, WeChat in China, and imo in Qatar.
* While not the dominant app for one-to-one messaging in any country, Discord is commonly used among online communities due to its ability to support chats with a large amount of members, topic-based channels, and cloud-based storage.

### More than 100 million users[edit | edit source]

Instant messenger client  | Company  | Usage

|
|

Discord | Discord Inc.  | 250 million users (May 2019)[58]
eBuddy XMS  | eBuddy  | 250 million users (September 2011)[59]
Facebook Messenger | Meta Platforms | 900 million active users (April 2016),[60] 1.3 billion monthly active users (September 2017)[61]
Google Hangouts | Google LLC | ?
iMessage | Apple Inc. | 140 million users (June 2012)[62]
Kik Messenger | Kik Interactive  | 300 million users (May 2016)[63]
Line | Naver Corporation | 217 million monthly active users (2016)[64]
Skype | Microsoft Corporation | 300 million monthly active users (5 June 2019),[65] 1.55 billion registered users (2019),[66] 4.9 million daily active users (2 March 2014),[67] 34 million peak online (February 2012).[68]
Snapchat | Snap Inc. | 301 million monthly active users (2016)[69]
Telegram | Telegram Messenger LLP  | 700 million monthly active users (June 2022),[70] 500 million monthly active users (January 2021)[71] over 1 billion registered users (2021)[72]
Tencent QQ | Tencent Holdings Limited  | 823 million monthly active users (July 2019)[73]
Viber | Rakuten | 260 million monthly active users (January 2019),[74] 1.169 billion registered users (March 2020)[75]
WeChat | Tencent Holdings Limited | 1132.7 million monthly active users (Q2 '2019)[76]
WhatsApp | Meta Platforms | 1200 million monthly active users (January 2017),[77] 2000 million registered users (12 February 2020),[78] 500 million daily active users (March 2019).[79]
XMPP (Protocol used by multiple clients)  | XMPP Standards Foundation | 1200+ million (September 2011)[80]
RCS (protocol)  | GSM Foundation | 1200 million users(January 2021),[81] about 500 million daily active users (December 2020)[82]
Signal | Signal Foundation | 100 million 2022 [1]

### Other platforms[edit | edit source]

Instant messenger client  | Company  | Usage

|
|

BlackBerry Messenger | BlackBerry | 91 million total users (October 2014)[83]
Element | New Vector  | 20+ million users (November 2020)[84]
Gadu-Gadu | GG Network S.A.  | 6.5 million users active daily (majority in Poland) (June 2010)[85]
IBM Sametime | IBM Corp. | 20 million users (February 2006)[86]
ICQ | ICQ LLC.  | 11 million total users (July 2014)[87]
IMVU | IMVU, inc.  | 1 million users (June 2007)[88]
Paltalk | Paltalk.com  | 5.5 million monthly unique users (August 2013)[89]
IRC (protocol)  |  | 400,000 (2013)[90]

### Closed services and such with unclear activity[edit | edit source]

Instant messenger client  | Company  | Usage

|
|

AIM | AOL, Inc | Closed in December 2017
MXit | MXit Lifestyle (Pty) Ltd.[91] | Closed in September 2016
Windows Live Messenger | Microsoft Corporation | Closed in April 2013, China in October 2014
Xfire | Xfire, Inc.  | Closed in June 2015
Yahoo! Messenger | Yahoo!, Inc. | Closed in July 2018
Hike Messenger | Hike Messenger  | Closed in January 2021
RTC  | rtcim.com  | 10 million users

## See also[edit | edit source]

Terms

* Ambient awareness
* Communication protocol
* Mass collaboration
* Message-oriented middleware
* Operator messaging
* Social media
* Text messaging
* SMS
* Unified communications / Messaging

Lists

* Comparison of cross-platform instant messaging clients
* Comparison of instant messaging protocols
* Comparison of user features of messaging platforms

Other

* Code Shikara

## References[edit | edit source]

1. ^ "History of IRC". 4 January 2021.
2. ^ "The Evolution of Instant Messaging". 17 November 2016.
3. ^ Lee, Tyler; PDT, on 06/21/2013 02:28. "BBM Is The Favorite Messaging Platform In The UK According To Research". Ubergizmo. Retrieved 2021-10-01.
4. ^ "Infatuation with Messaging Apps Continues in Indonesia - eMarketer". www.emarketer.com. Retrieved 2021-10-01.
5. ^ "8 Examples of Instant Messaging | ezTalks". www.eztalks.com. Retrieved 2020-08-06.
6. ^ Clifford, Catherine (2013-12-11). "Top 10 Apps for Instant Messaging (Infographic)". Entrepreneur. Retrieved 2020-08-06.
7. ^ "Skype hauled into court after refusing to hand call records to cops". The Register. 26 May 2015. Retrieved 17 March 2017.
8. ^ "Summary Of Final Decisions Issued By The Trademark Trial And Appeal Board" (PDF). Archived from the original (PDF) on 8 October 2012. Retrieved 2012-05-11.
9. ^ "Important and Long Delayed News". April 6, 2007. Archived from the original on April 8, 2007.
10. ^ "Yahoo! Messenger Launches "Imvironments™" with Next Generation of Yahoo! Messenger Service | Altaba Inc".
11. ^ Fetter, Mirko (2019). New Concepts for Presence and Availability in Ubiquitous and Mobile Computing. University of Bamberg Press. p. 38\. ISBN 9783863096236. "The basic concept of sending instantaneously messages to logged in users came with ... CTSS ..."
12. ^ Tom Van Vleck. "Instant Messaging on CTSS and Multics". Multicians.org. Retrieved 2012-05-11.
13. ^ a b c d e f "A Brief History of Chat Apps · Guide to Chat Apps". towcenter.gitbooks.io. Retrieved 2020-03-23.
14. ^ CompuServe Innovator Resigns After 25 Years, The Columbus Dispatch, May 11, 1996, p. 2F
15. ^ Wired and Inspired, The Columbus Dispatch (Business page), by Mike Pramik, November 12, 2000
16. ^ "AOL Instant Messenger's Real-Time IM feature". Help.aol.com. Archived from the original on March 12, 2012. Retrieved May 11, 2012.
17. ^ "RealJabber.org's animation of real-time text". Realjabber.org. Retrieved 2012-05-11.
18. ^ "Screenshot of a Quantum Link OLM". Archived from the original on June 19, 2012. Retrieved May 11, 2012.
19. ^ "The History of Skype". 28 November 2018.
20. ^ Kelly, Jon (24 May 2010). "Instant messaging: This conversation is terminated". BBC. Retrieved 14 March 2018.
21. ^ "AIM has been discontinued as of December 15, 2017". help.aol.com. Archived from the original on 15 December 2017.
22. ^ "The rise of messaging platforms". The Economist, via Chatbot News Daily. 2017-01-22. Retrieved 14 March 2018.
23. ^ "Google's Allo puts AI in a messaging app". Engadget. Retrieved 2020-04-01.
24. ^ Schoon, Ben (2019-03-12). "RIP: Google Allo dies today, a look back at the groundwork of Google Messages and RCS". 9to5Google. Retrieved 2022-02-03.
25. ^ "A Brief History of Chat Services" (PDF). sameroom.io.
26. ^ "The decline of instant messaging". BBC News. May 24, 2010.
27. ^ "How messaging apps change the way we communicate". MetrixLab. Retrieved 2020-04-01.
28. ^ "More Than a Message: The Evolution of Conversation". insights.fb.com. Retrieved 2020-04-01.
29. ^ "Text Messaging Apps Are Transforming Workplace Communications". TeleMessage. Retrieved 2020-04-01.
30. ^ Kashyap, Vartika. "Are Messaging Apps at Work Affecting Team Productivity?". learn.g2.com. Retrieved 2020-04-01.
31. ^ instant messaging Archived February 12, 2010, at the Wayback Machine, NetworkDictionary.com.
32. ^ "Oracle Buzzes with Updates for its Beehive Collaboration Platform". CMSWire. May 12, 2018. Retrieved October 16, 2018.
33. ^ "Better Business IMs - Business Technology". Im.about.com. 2012-04-10. Archived from the original on 2011-04-30. Retrieved 2012-05-11.
34. ^ "Reader Questions IM Privacy at Work". Im.about.com. 2008-03-15. Retrieved 2012-05-11.
35. ^ Schneier, Bruce; Seidel, Kathleen; Vijayakumar, Saranya (11 February 2016). "Multi-Encrypting Messengers – in: A Worldwide Survey of Encryption Products" (PDF). Retrieved 28 March 2017.
36. ^ Adams, David; Maier, Ann-Kathrin (6 June 2016). "BIG SEVEN Study, open source crypto-messengers to be compared - or: Comprehensive Confidentiality Review & Audit: Encrypting E-Mail-Client & Secure Instant Messenger, Descriptions, tests and analysis reviews of 20 functions of the applications based on the essential fields and methods of evaluation of the 8 major international audit manuals for IT security investigations including 38 figures and 87 tables" (PDF). Retrieved 22 March 2017.
37. ^ "Chat apps surpass SMS for the first time, study finds". 29 April 2013.
38. ^ Ling, Rich; Lai, Chih-Hui (2016-10-01). "Microcoordination 2.0: Social Coordination in the Age of Smartphones and Messaging Apps". Journal of Communication. 66 (5): 834–856. doi:10.1111/jcom.12251. ISSN 0021-9916.
39. ^ a b Horwitz, Josh (25 August 2015). "Why WhatsApp bombed in the US, while Snapchat and Kik blew up". Quartz. Retrieved 2020-04-01.
40. ^ "IM Security Center". Retrieved May 13, 2007.
41. ^ "Why just say no to IM at work". Blog.anta.net. October 29, 2009. ISSN 1797-1993. Archived from the original on July 26, 2011. Retrieved October 29, 2009.
42. ^ Chris Christiansen and Rose Ryan, International Data Corp., "IDC Telebriefing: Threat Management Security Appliance Review and Forecast"
43. ^ Dredge, Stuart (2014-11-06). "How secure is your favourite messaging app? Today's Open Thread". the Guardian. Retrieved May 16, 2015.
44. ^ "Secure Messaging Scorecard". Electronic Frontier Foundation. Archived from the original on November 15, 2016. Retrieved May 16, 2015.
45. ^ Saleh, Saad (2015). IM Session Identification by Outlier Detection in Cross-correlation Functions. Conference on Information Sciences and Systems (CISS). doi:10.13140/RG.2.1.3524.5602.
46. ^ Saleh, Saad (December 2014). Breaching IM Session Privacy Using Causality. IEEE Global Communications Conference (GLOBECOM). doi:10.13140/2.1.1112.2244.
47. ^ a b c d e "Cybersecurity 101: How to choose and use an encrypted messaging app". TechCrunch. 25 December 2018. Retrieved 2020-04-01.
48. ^ "ESG compliance report excerpt, Part 1: Introduction". Archived from the original on July 16, 2012. Retrieved May 13, 2007.
49. ^ FINRA, Regulatory Notice 07-59, Supervision of Electronic Communications, December 2007
50. ^ a b "Messaging App Usage Statistics Around the World". MessengerPeople. 2020-02-12. Retrieved 2020-04-01.
51. ^ "Hootsuite 🦉 on Twitter: "There are now only 25 countries around the world where a Facebook-owned app isn't the top messenger platform..." / Twitter".
52. ^ "11 New People Join Social Media Every Second (And Other Impressive Stats)". Archived from the original on 2018-01-30.
53. ^ "Most Popular Messaging Apps by Country - Similarweb".
54. ^ "Most Popular Messaging Apps: Top Messaging Apps 2021 - Respond.io".
55. ^ "Viber usage spikes as pandemic strikes - Philstar.com". The Philippine STAR.
56. ^ "Viber expands foothold in the Philippines in 2021 - BusinessMirror". BusinessMirror. 17 December 2021.
57. ^ "When chatting apps can be overwhelming - VnExpress International".
58. ^ "Discord, Slack for gamers, tops 250 million registered users". CNET. 13 May 2019. Retrieved 26 July 2021.`{{cite web}}`: CS1 maint: url-status (link)
59. ^ "eBuddy Blows Through 250 Million User Accounts, Android Up 300% – TechCrunch". techcrunch.com. 21 September 2011.
60. ^ 900 million active users. Retrieved 7 April 2016
61. ^ "Facebook Messenger: monthly active users 2017". Statista. Retrieved 2020-08-06.
62. ^ Tsotsis, Alexia (11 June 2012). "iMessage Has More Than 140M Users And Has Sent Over 150B Messages, With Over 1B Messages Sent Per Day". TechCrunch. AOL. Retrieved May 16, 2015.
63. ^ "Kik already has over 6,000 bots reaching 300 million registered users". Tech Crunch. 11 May 2016.
64. ^ "LINE: number of monthly active users 2016 | Statistic". Statista. Retrieved 2017-04-22.
65. ^ "26 Amazing Skype Statistics and Facts (2019)". expandedramblings. 22 May 2014. Retrieved 2019-09-06.
66. ^ "Number of estimated Skype users registered worldwide from 2009 to 2024". statista. Retrieved 2019-02-21.
67. ^ "26 Amazing Skype Statistics and Facts (2019)". expandedramblings. 22 May 2014. Retrieved 2019-09-06.
68. ^ "34 Million People Concurrently Online on Skype – - Skype Blogs". Skype Blogs. Archived from the original on November 18, 2012. Retrieved May 16, 2015.
69. ^ "Number of monthly active Snapchat users 2013-2016". Statista.
70. ^ "700 Million Users and Telegram Premium". Telegram. 2022-06-21. Retrieved 2022-07-08.
71. ^ Telegram Messenger [@telegram] (January 12, 2021). "Telegram surpassed 500 million active users" (Tweet) - via Twitter.
72. ^ "Telegram tops 1 billion downloads". TechCrunch. 30 August 2021. Retrieved 2021-08-30.
73. ^ "Mind-Blowing Viber Statistics for 2019". statista. Retrieved 2019-10-08.
74. ^ "Mind-Blowing Viber Statistics for 2019". 99firms. Retrieved 2019-03-05.
75. ^ "Number of unique Viber user IDs from June 2011 to March 2020". statista. Retrieved 2020-09-11.
76. ^ "Number of monthly active WeChat users from 2nd quarter 2012 to 2nd quarter 2019 | Statista". Statista. Retrieved 2019-09-23.
77. ^ "WhatsApp: number of users 2013-2017 | Statista". Statista. Retrieved 2017-04-21.
78. ^ "Two Billion Users -- Connecting the World Privately". blog.whatsapp.com. Retrieved 2020-02-14.
79. ^ "Number of daily active WhatsApp Status users from 1st quarter 2017 to 1st quarter 2019". statista. Retrieved 2019-08-09.
80. ^ This number is based on the number of Facebook accounts ("500 Million Stories | Facebook". Blog.facebook.com. Retrieved 2013-07-11.) Google talk and WLM accounts. ("Anyone can build a Messenger client—with open standards access via XMPP". Windowsteamblog.com. Retrieved 2013-07-11.) Further, as there are many other open source servers (some also with companies behind it), the number provided is probably too small. However, many of these servers are not federated, and so, do not actually interact as is usually expected of XMPP servers.
81. ^ "RCS users will more than double by 2025". 12 January 2021.
82. ^ "The Rich Future of RCS Business Messaging". 20 November 2020.
83. ^ 91 million Active BBM Users. Retrieved 6 March 2015
84. ^ "Element group video messenger | Group chat | Team communication productivity app | Matrix open network | Decentralized end-to-end encryption". element.io. Retrieved 2020-11-11.
85. ^ "Brands | Gadu Gadu". Naspers.com. Archived from the original on March 20, 2009. Retrieved 2010-06-29.
86. ^ Reuters. "IBM instant messaging links to AIM, Yahoo, Google". CNET. Retrieved 2019-11-06.
87. ^ Speed, Ilya Khrennikov 2014-07-29T18:43:55Z- Comments Email Print. "ICQ Messenger Is Growing for the First Time in Years". Bloomberg. Retrieved 2017-04-04.
88. ^ "IMVU Information". Retrieved May 16, 2015.
89. ^ "PalTalk: It Was "Flattering" To Be Included In The PRISM Slidedeck". TechCrunch. 17 June 2013. Retrieved 2013-08-06. "PalTalk, a profitable group video chat site that’s been around for more than a decade and has about 5.5 million monthly uniques [...]"
90. ^ "IRC Has Lost 60% of Its Users Since 2003, but Life as a Robot is Just Beginning". 6 January 2013.
91. ^ MXit federates with the Google Talk network.

## External links[edit | edit source]

* Instant Messaging at Curlie

* v
* t
* e

Instant messaging

Protocols
(comparison)|

| Open|

* DDP
* IMPP
* IRC
* Matrix
* MTProto
* Retroshare
* Signal Protocol
* SIP
* MSRP
* SIMPLE
* Tox
* XMPP
* Jingle
* WFP
* Zephyr

|

Closed|

* MSNP
* OSCAR
* TOC
* Skype

Services|

* Band
* BBM
* BiP
* DingTalk
* Dingtone
* Discord
* Google Chat
* Google Hangouts
* Google Meet
* GroupMe
* Guilded
* Hike Messenger
* HipChat
* ICQ
* iGap
* iMessage
* Imo
* IRC Networks
* Jongla
* KakaoTalk
* Kik
* Lark
* Libon
* Line
* Marco Polo
* Mattermost
* Messages (Google)
* Messenger
* The Palace
* Palringo
* Session
* Signal
* Skype
* Slack
* Snapchat
* SNOW
* Tango
* Telegram
* QQ
* Textfree/Pinger
* Threema
* Tox
* Trillian
* Viber
* WeChat
* WhatsApp
* Wickr
* Windows Messenger service
* Zoom
* Zulip

Clients
(comparison)|

| Single protocol|

* Baidu Hi
* BBM
* Briar
* CSipSimple
* Delta Chat
* Element
* FaceTime
* Fetion
* Gadu-Gadu
* Google Allo
* GroupMe
* HCL Sametime
* ICQ
* IMVU
* Jami
* Jongla
* Linphone
* Messenger
* Palringo
* Retroshare
* Ricochet
* Session
* Signal
* Skype
* Telegram
* Tencent QQ
* Tox
* WeChat
* WhatsApp
* Wickr
* Wire

|

Multi-protocol|

* Adium
* Ayttm
* BitlBee
* Centericq
* eBuddy
* Empathy
* Fire
* Instantbird
* Jitsi
* Kopete
* Messages/iChat
* Miranda NG
* Nimbuzz
* Pidgin
* Finch
* QIP 2010
* Skype for Business
* Telepathy
* Thunderbird
* Trillian
* Upptalk

XMPP (Jabber)
(Comparison)|

* Bombus
* ChatSecure
* Conversations
* Gajim
* Psi
* Spark
* Tkabber
* Xabber

MSNP|

* aMSN
* Microsoft Teams
* Skype
* Communicator/Lync (defunct)

Defunct|

* List of defunct instant messaging platforms

See also|

* Backchannel
* Chat log
* Chatbot
* Circuit
* Comparison of user features of messaging platforms
* Contact list
* Emoticon
* File sharing
* FirstClass
* Flock
* Fuze Box
* Hall.com
* LAN messenger
* Presence information
* RingCentral Glip
* Shoutbox
* SMS language
* Status message
* U-Report
* Videotelephony
* Voice over IP
* Web chat
* Webcam
* Yammer

* v
* t
* e

Computer-mediated communication

* Online chat
* Online discussion
* Communication software
* Collaborative software
* Social network service
* Virtual learning environment

Asynchronous conferencing|

* Email
* Electronic mailing list
* FidoNet
* Usenet
* Internet forum
* Textboard
* Imageboard
* Shoutbox
* Bulletin board system
* Online guestbook

Synchronous conferencing|

* Data conferencing
* Instant messaging
* Internet Relay Chat
* LAN messenger
* Talker
* Videoconferencing
* Voice over IP
* Voice chat in online gaming
* Web chat
* Web conferencing

Publishing|

* Blog
* Microblogging
* Wiki

* v
* t
* e

Web syndication

History
Blogging
Podcasting
Vlogging
Web syndication technology

Types|

* Art
* Bloggernacle
* Classical music
* Corporate
* Dream diary
* Edublog
* Electronic journal
* Fake
* Family
* Fashion
* Food
* Health
* Law
* Lifelog
* Litblog
* MP3
* News
* Photoblog
* Police
* Political
* Project
* Reverse
* Travel
* Warblog

Technology|

| General|

* BitTorrent
* Feed URI scheme

|

Features|

* Linkback
* Permalink
* Ping
* Pingback
* Reblogging
* Refback
* Rollback
* Trackback

Mechanism|

* Conversation threading
* Geotagging
* RSS enclosure
* Synchronization

Memetics|

* Atom feed
* Data feed
* Photofeed
* Product feed
* RDF feed
* Web feed

RSS|

* GeoRSS
* MRSS
* RSS TV

Social|

* Inter-process communication
* Livemark
* Mashup
* Referencing
* RSS editor
* RSS tracking
* Streaming media

Standard|

* OML
* OPML
* RSS Advisory Board
* Usenet
* World Wide Web
* XBEL
* XOXO

Form|

* Audio podcast
* Enhanced podcast
* Mobilecast
* Narrowcasting
* Peercasting
* Screencast
* Slidecasting
* Videocast
* Webcomic
* Webtoon
* Web series

* Anonymous blogging
* Collaborative blog
* Columnist
* Instant messaging
* Liveblogging
* Microblog
* Mobile blogging
* Roblog
* Spam blog
* Video blogging
* Motovlogging

Media|

| Alternative media|

* Carnivals
* Fiction
* Journalism
* Citizen
* Database
* Online diary
* Search engines
* Sideblog
* Software
* Web directory

|

Micromedia|

* Aggregation
* News
* Poll
* Review
* Search
* Video
* Atom
* AtomPub
* Broadcatching
* Hashtag
* NewsML
* 1
* G2
* Social communication
* Social software
* Web Slice

Related|

* Blogosphere
* Escribitionist
* Glossary of blogging
* Pay per click
* Posting style
* Slashdot effect
* Spam in blogs
* Uses of podcasting

* v
* t
* e

Mobile phones

Mobile
networks,
protocols|

* Channel capacity
* Frequencies
* Multi-band
* Network operator
* list
* Roaming
* Signal
* SIM card
* dual SIM
* SIM lock
* Standards comparison
* Tethering
* VoIP
* WAP
* XHTML-MP

Generations|

* Analogue:
* 0G
* 1G
* Digital:
* 2G
* 3G
* adoption
* 3.5G
* 4G
* 4.5G
* 5G
* 6G

General
operation|

* Features
* GSM
* services
* History
* Operating system
* Security
* phone cloning
* Telephony
* airplane mode
* Text messaging
* SMS
* MMS
* RCS
* Spam
* Tracking
* Web browsing

Mobile
devices|

* Manufacturers
* 3D phone
* Camera phone
* Car phone
* Feature phone
* Projector phone
* Satellite phone
* Smartphone

Form factors|

* Bar
* Flip
* Phablet
* Slider
* Slate
* Smartwatch
* Fold

Smartphones|

* Android devices
* rooting
* BlackBerry 10
* iPhone
* iOS jailbreaking
* Open-source mobile phones
* Symbian devices
* Windows Phone devices

Mobile
specific
software|

| Apps|

* Development
* Distribution
* Management
* Cloud computing

|

Commerce|

* Banking
* Marketing
* advertising
* campaigns
* Payments
* contactless
* donating
* Ticketing

Content|

* Blogging
* Email
* Gambling
* Gaming
* Health
* Instant messaging
* Learning
* Music
* News
* Search
* local
* Social
* address book
* Television

Culture|

* Box breaking
* Charms
* Comics
* Dating
* Japanese culture
* Novels
* Ringtones
* silent mode
* Selfie
* Txt-spk
* Wallpaper

Environment
and health|

* BlackBerry thumb
* Driving safety
* Electronic waste
* External power supply
* Mental health from overuse
* Phantom vibration syndrome
* Radiation and health
* Recycling

Law|

* Carrier IQ
* Legality of recording by civilians
* Mobile phones in prison
* Photography and the law
* Telephone tapping
* Texting while driving
* USA use restrictions while driving

*   *   * Category

*[v]: View this template
*[t]: Discuss this template
*[e]: Edit this template