Podcast Mon Jan 10 2005 at 8:19:39 A Podcast (a play on the words "broadcast" and "iPod") is very much like a blog. You subscribe to a feed using a news aggregator which then periodically checks the feed and downloads new articles as they are posted. A Podcast works similarly: You subscribe to a feed using a Podcast aggregator which will download new audio files and add them to your iPod or other portable music player. How does it work? The feed is nothing more than a regular RSS 2.0 feed. Each item with a Podcast contains an enclosure using the enclosure tag. Aggregators are then free to download (or not) this file and add it to your playlist and music player. The concept of radio shows distributed in audio files is not new, but the word "podcasting" connotes the integration of the concept with RSS for easy, automatic syndication.