I found this site and I must admit I'm pretty amazed. You type in a band or song you like and then it reads all the song stats and plays songs that match it. Very cool and free.

Pandora
www.pandora.com (http://www.pandora.com)

Yeh thats a good song and if you cant think of the song name but have the beat in your head go here.

www.songtapper.com