A podcast is sort of like an Internet radio show. You can download the audio files to your portable audio player and listen to them on the go, or you can simply listen to them online. Many multimedia players (iTunes, Windows Media Player, Winamp, etc.) know what to do with podcasts. You can "subscribe" to the podcast using special software, and you will be notified of any updates to the podcast whenever you open the software.

2 Minute Money Nuggets with Dr. Todd Coontz