Apple’s iTunes Store puts thousands of free podcasts at your fingertips. To find them, select Music Store in the iTunes source column; then click “Podcasts” to journey Inside the Music Store. Or, here’s another way to get there: select the little podcasts icon in the Source column, then click the arrow next to “Podcast Directory” at the very bottom of the iTunes window. Once you’ve downloaded or subscribed to a podcast, click the Music Store button to return to the home page of the Store.
A podcast is an episodic program delivered via the Internet using an XML protocol called RSS. Podcast episodes can be audio files, video files, documents, or any combination of the three. The publisher or broadcaster podcasts the program by posting the episodes and the XML document to a Web server. The consumer subscribes to the podcast using a client application, such as iTunes, which regularly reads the XML file and downloads new episodes. Read more.