What is a Podcast?
A podcast is a series of digital media files, either audio or video, that is released episodically and downloaded through web syndication. The mode of delivery is what differentiates podcasts from other ways of accessing media files over the Internet, such as simple download or streamed webcasts: special client software applications known as podcatchers (like iTunes, Zune or Winamp) are used to automatically identify and download new files in the series when they are released, by accessing a centrally-maintained web feed that lists all files currently associated with that particular series. New files can thus be downloaded automatically by the podcatcher and stored locally on the user's computer or other device for offline use, making it simpler for a user to access episodic content. Like the term broadcast, podcast can refer either to the content itself or to the method by which the content is syndicated; the latter is also called podcasting. A podcaster is the person who creates the content.