A podcast is a type of digital media consisting of an episodic series of audio files subscribed to and downloaded through web syndication or streamed online to a computer or mobile device. The word is a neologism derived from "broadcast" and "pod" from the success of the iPod, as podcasts are often listened to on portable media players.

A list of all the audio or video files currently associated with a given series is maintained centrally on the distributor's server as a web feed, and the listener or viewer employs special client application software, known as a podcatcher, that can access this web feed, check it for updates, and download any new files in the series. This process can be automated so that new files are downloaded automatically. Files are stored locally on the user's computer or other device ready for offline use, giving simple and convenient access to episodic content. In this way it is contrasted to webcasting (Internet streaming).

As discussed by Richard Berry, podcasting is both a converged medium bringing together audio, the web and portable media player, and a disruptive technology that has caused some in the radio business to reconsider some established practices and preconceptions about audiences, consumption, production and distribution. This idea of disruptiveness is largely because no one person owns the technology; it is free to listen and create content, which departs from the traditional model of 'gate-kept' media and production tools. It is very much a horizontal media form: producers are consumers and consumers become producers and engage in conversations with each other.

William "Bill" Burr (born June 10, 1968) is an American stand-up comedian, radio host and actor.

Burr was born in Canton, Massachusetts. His father was a dentist, and Bill worked as a hygienist for a short time. He began stand-up at age 23 after attending Emerson College, where he majored in Radio. Burr also had a early morning slot on college radio during this period. In 1995, he moved to New York City and lived there for eight months. Burr then moved to Los Angeles, California, where he worked on a number of film and television projects. He returned to New York in 1999 and moved back to Los Angeles in 2008, where he currently resides. Burr stands 5'10" in height, is left handed, and is of German and Irish descent.

He performs over three hundred shows annually, had two movies released in 2006, and has performed on The Late Show with David Letterman, Late Night with Conan O'Brien, and The Tonight Show with Conan O'Brien. In early 2004, he appeared in two episodes of Chappelle's Show, and in September 2005, his HBO One Night Stand special aired. Along with many other projects, Burr has also been a guest comedian on the Bob and Tom Show as well as on the Opie and Anthony Show on XM Satellite Radio, sometimes sitting in when third member Jim Norton is away. He has also performed on the Comedy Central Presents show.

William J. "Bill" Simmons III (born September 25, 1969) is a sports columnist, author, and podcaster. He currently writes columns and hosts podcasts for Grantland.com, which is affiliated with ESPN.com. He is a former writer for ESPN The Magazine and Jimmy Kimmel Live!. Nicknamed The Sports Guy, formerly The Boston Sports Guy, Simmons gained the attention of ESPN with his web site, BostonSportsGuy.com which earned him a job offer in 2001.

Since joining ESPN in 2001, in addition to writing for ESPN.com, he has also hosted his own podcast on ESPN.com titled The B.S. Report, appeared as a special contributor on the television series E:60, and serves as an executive producer of ESPN's documentary project, 30 for 30. He also has written two best-selling books and worked as a writer for Jimmy Kimmel Live!. On June 8, 2011, Simmons launched Grantland.com, an online magazine for which he serves as Editor-in-chief. At this point he began publishing his Sports Guy columns and B.S. Report podcasts on Grantland, which are then linked to from ESPN.com.