From EduTechWiki - Reading time: 12 min
What is podcast? It is an audio program, just like Talk Radio. But, unlike radio shows you can subscribe to a podcast or download it on your smartphone or computer and listen to it whenever you like and wherever you like, while walking, driving, in the gym ... etc. This cannot be the case with videos. Though some video podcast have started to emerge, it is unlikely that they will be competitive to audio ones. To watch video, you have to stick stationed to a single place, provided that you are not driving.
"The term "podcast" is a portmanteau of the name of Apple's portable music player, the iPod, and broadcast; a pod refers to a container of some sort and the idea of broadcasting to a container or pod correctly describes the process of podcasting." (Wikipedia:Podcasting, retrieved 17:17, 20 March 2007 (MET)).
Podcasting is an important technology which is simple and easy to use. The steps you have to follow for creating and listening to a podcast are the following:
A podcast can refer to a single recording (an episode) or to a collection of episodes (a channel). A channel can be associated to a specific person, but usually is specific to a topic, and can have multiple people producing episodes for the channel.
The concept of podcasting was proposed by Tristan Louis in October, 2000 and then it was carried out by Dave Winer, the author of the RSS format. Winer defined a new element called enclosure which passed the address of a media file to the RSS aggregator and then, he succeeded in enclosing a Grateful Dead song in his weblog on January, 2001. As What is Podcasting points out, Winer created the RSS 2.0 specification which is used to give information about podcasts. RSS is an XML format which is used to identify the channels of information which contain audio, video, images, text, PDF or stories. Rss files are usually used to see metainformation about content and generally contain the URL references to web content. So it is possible to use RSS files to give information in XML format.
The term podcasting was popularized by Adam Curry who created an Applescript application. It allows you to automate the process of downloading and syncing audio files to iPods. In 2003 podcasts started to appear on lots of web sites and other software.
Podcasting was considered the 2005 word of the year by New Oxford American Dictionary which defines the term as "a digital recording of a radio broadcast or similar program, made available on the internet for downloading to a personal audio player".
Nowadays Podcasting is considered an important tool which allows students to use technologies based on entertaiment systems such as portable audio players (e.g. an iPod) for educational experiences.

Create your recording using a recording application. An excellent open-source free cross platform recording and sound editing application is Audacity. Some podcasting services also offer simple recording applications (See list below).
For some more beginner tips:
A hosting service keeps your recordings on a server. When you sign up you will create a first channel which will contain your collection of recordings often called podcast episodes. The hosting service often offers options to get your podcast listed in other podcast services known also as podcast directories (Apple, Spotify, Soundcloud, etc.) through an RSS feed. This RSS URL can also be shared and used by people to subscribe to your channel or listen to a particular episode on a podcast player of their choice (see list below). Some hosting services also offer a player.
If you upload your files to a hosting site like Podomatic (list gives free options for each, though you can pay for more features)
The RSS feed creation is done automatically for you. They offer free basic to paid upgraded services (bandwidth, hours of recording, etc.)
To listen to podcasts, you (as well as your listeners) must have a podcast player.
For promotion and sharing of your podcast, a lot will depend on the site where you upload. But many hosting services offer a list of 'directories' where you can publish automatically. Places like Soundcloud, for instance, offer a lists of sharing options.
You can also share directly to Twitter, Facebook, and more, and you can use the HTML <embed> tag to insert the audio directly into your other websites or embed media features of your platform (as you would with a video) . Embedding audio is perhaps the best way to sync your podcast with your website content. You can thus add audio directly into a site and provide either a full transcript of the podcast or a list of topics and resources covered in the podcast. (Complete transcripts can be helpful for low-bandwidth or accessibility.)
Podcasting is a significant resource which teachers can use to teach and learn a language. It is an alternative method of learning which can help to improve your listening skills. Most of producers of podcasts are educators who use this technology to communicate with their students outside the traditional class. Podcasting is also a tool which allows teachers to share their ideas and suggestions in order to improve their method of teaching.
Educators who decide to create an educational podcast, have to follow five important steps:
2. Teachers have to determine their educational aim and purpose for each podcast they create. For example some of the most important goals are:
3. Teachers have to explain their contents through interviews, dialogues or monologues. This is an important passage because the initial message can determine the success or the failure of their podcasts.
4. It's better if teachers produce their podcasts in a personal and informal way because some researches in instructional media stated that students learn better using this method.
5. Teachers should integrated their podcasts into their course content and learning activities, because this could be very useful for their students.
While podcasting cannot substitute F2F education, the potential advantages of it in traditional and distance education include:
With all these educational potentials, podcast is strangely not among e-learning tools listed by their category/page!
Interest in podcasting for educational purposes is increasing, particularly in the USA ( http://recap.ltd.uk/articles/podguide.html). Podcasting can be used in educational settings,provides personalized learning for all levels(begginers,intermediate,advaced learners)and “involves a shift from e-learning to m-learning”(from: http://dmc.umn.edu/etf/podcasting.pdf). M-learning indicates mobility because you can listen to podcasts at your convenience. Furthermore, it integrates the traditional method of teaching English which consists mainly of ordinary lectures with audio files recorded by native speakers. By podcasting teachers employ alternative approaches to teaching and learning. The audio material advised by educators might be talilored for specific and different needs, abilities of learners. Moreover, teachers provide additional material which is useful for talented students and supports those with specific learning needs. This emerging method of teaching reinforces particular tasks and activities and it also supports independent learning for revision and homework.
Listening to or creating your own podcasts represents a bidirectional feature of podcasting and produces a richer learning environment so that learners can actively contribute to the improvement of their language skills and practice English outside their classrooms.
Indeed it offers many opportunities for students such as:
Sometimes the podcasts you find are quite difficult to understand; for this reason there are quite often scripts about the content of the audio file in order to make comprehension easier.
On the Web there are a lot of websites on improving your language skills through podcasting. They often contain grammar explanations, vocabulary, discussions about news, etc. in order to have a clearer idea of their content.Below you can find some that are useful for learning English as a second language (see Examples).
One other important feature of podcasts is that they give web resources a more human look because of the voice compared to blogs and wikis that might contain only written texts. It is important to integrate all these different kinds of online resources in order to make interaction concrete and to develop listening and speaking skills that allow you to interact and communicate with people in real life.
Sound is relatively 'lightweight' compared to video in terms of productions and file size. This makes it a good alternative to video in low bandwidth distance learning contexts or digital learning in emergencies. Yet, it still allows for lowering of the transactional distance between learners and instructors (Park, 2011). Podcasts can also be made available through internet radio streaming services.
As it is already said podcasting is aimed at creating audio files accessible to a wider audience and distributing them to a worldwide level. Its pedagogical function consists of improving a new collaborative dimension, where students can add and listen to various topics in a free and innovative way. But, like wikis and blogs, podcasts are sometimes attacked by vandalism-As result the quality and accuracy of podcasts are spoilt. The free form nature of podcasting has a double implication, it surely allows you to download and upload audio and video files in a quick and easy way, but in a open and collaborative Web, anyone can easily copy copyrighted material without the permission of copyrights holders and also add misleading or unsuitable contents.
(needs completion).
See also: Video streaming, Video editing, videoconferencing, Multimedia container format, MP4, etc.
To generate and RSS feed for your podcast, some online services offer limited hosting for free with varying upgrade options.
Podcasts for learning English as a second language: