If you're a fan of National Public Radio programs but never find the time to listen, now you can get shows related to your search terms delivered as podcasts.
The basic use is to name your feed, type in a few keywords, then grab the feed (automatic iTunes and Zune links are provided). Unless you love deleting untouched podcasts, though, you'll want to get specific on those searches, as the feed generator delivers everything in which your terms pop up, and NPR hosts a whole lot of shows. So it's best for specific people, topics, and companies, but a pretty great way to get fresh listening for your commute or daily listening.
The service is, of course, free to use, and the shows arrive as MP3s.