Podcasting is a great new way of distributing audio automatically. When a site (like this) offers a podcast feed you can subscribe to the feed using podcasting software and any new items will be automatically downloaded to your computer. As the name implies, if you have a portable audio player, the files can also be copied to the player.
However, and this is a common area of confusion, no iPod or other MP3 player is required. You can listen to the audio on your computer just as you would any MP3. In fact, with our feeds you don't even need podcast software. Just click the feed link and download the show you want directly, or use the player built into every page.
If you decide you want to listen to a show every time it comes out, you might consider using a podcasting client. Think of it as Tivo for Internet audio. You subscribe to content you want by visiting the web site and getting the podcast URL. Your podcast software automatically downloads any new shows and copies them to your MP3 player. There's always something new and interesting to listen to and you never have to check the web to see when a new show is available.
By far the easiest way to subscribe to podcasts is to install the free iTunes program for Windows or Macintosh. Once you've installed iTunes you can visit the TWiT page at the iTunes Music Store for links to all our shows. (Don't worry, even though they're in the iTunes Store, our podcasts are free!)
Visit Wikipedia for more information about podcasting.
Source: http://www.twit.tv/huh