Pandora Internet Radio

Free, Personalized Internet Radio: Pandora .

You tell it a couple of artists or songs you like, and it plays stuff like it. It's pretty accurate; I've been using it for a few months and I rarely get a song I don't like.

If you don't like a song, you tell it, and it doesn't play the song again. Songs with similar qualities get played less frequently. On the flip side, you can tell it that you really like a song, and it plays songs like it more frequently.

It's a pretty cool site. I give it a couple o' thumbs up.