I have been using Last.fm a lot more lately since I started using Songbird and my Android phone to play my music. Songbird and my Last.fm app scrobble immediately to the Last.fm service the current tracks I’m listening to. Scrobbling is how Last.fm builds a personalized library of music for you in a radio format. You listen to the music library you own and when you want to let Last.fm do the work for you it has a library built specifically for your tastes in music. I think there is an untapped market for a service similar to this for movies and television shows or websites even. If anybody knows of one already out there let me know.
Update: I think I may have found a solution.