A podcast is a series of digital media files either digital audio or video that is episodic; downloadable; program-driven, mainly with a host and/or theme; and convenient, usually via an automated feed with computer software. Podcasting is similar in nature to RSS, which allows subscribers to subscribe to a set of feeds to view syndicated Web site content. The word replaced webcast in common vernacular due to the fame of the iPod and its role in the rising popularity and innovation of web feeds. Moreover, is a free service that allows Internet users to pull audio files (typically MP3s) from a podcasting Web site to listen to on their computers or personal digital audio players.
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