P�odcasting 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. The term comes from a combination of the words iPod (a personal digital audio player made by Apple) and broadcasting. Even though the term is derived from the iPod, you don't need an iPod to listen to a podcast. You can use virtually any portable media player or your computer.

Unlike Internet radio, users don't have to 'tune in' to a particular broadcast. Instead, they download the podcast on demand or subscribe via an RSS (Really Simple Syndication) feed, which automatically downloads the podcast to their computers.