I’ve been using Pandora for a while now, and have enjoyed learning about all kinds of new music through it. It’s a part of the music genome project, a service that is always ‘learning’ about music genres and what kinds of music a person likes. All you do is enter an artist that you like, and Pandora goes off and finds similar artists that my interest you. If you like the song you hear, give it a thumbs up. If not, skip it or give it a thumbs down to never hear it again.
I think it still has some bugs, because on my ‘Radiohead’ station, it brought up the song “How’s it going to be” by Third Eye Blind. Yuck!
Most of the time it works fine :D. Give it a try if you haven’t yet!