Another exploration into Google App Engine, this time Pod-U-Like, an application for managing a list of podcasts.
Enter a podcast feed URL (it should really have a way of searching for these built-in...) and it'll be added to your store. When the page is next loaded, or after pressing 'Show All', the newest items from your stored feeds will be displayed in reverse chronological order, ready for listening.
There's also export in various formats, but I'm not sure how useful those are yet.
Odeo does all this and more in a much richer way, of course, but sometimes a quick, lightweight interface can be good too.