With iTunes 4.9 you can now browse, find, sample and subscribe to thousands of free podcasts â€” radio shows delivered over the Internet to your computer â€” then sync them to your iPod and listen anytime, anywhere.
Now you can easily find and subscribe to free podcasts from one of the largest directories on the web â€” the iTunes Podcast Directory. Featuring over 3,000 free podcasts from favorites such as ABC News, Adam Curry, ESPN, KCRW and more, the Podcast Directory puts all the best podcasts in one place. Once you subscribe to a podcast, iTunes automatically checks for updates and downloads new episodes to your computer. When you sync your iPod, all your podcasts come along for the ride. You get on-demand radio, delivered automatically. All from the worldâ€™s best digital jukebox.
More at http://www.apple.com/itunes/