While using Stumble Upon during one of my boring moments, I ran across a really cool site called Musicovery.  It’s basically another radio site, with a twist.  You have a cute little dashboard embedded in the page.  On this dashboard you can choose the genre, decade, and mood of the music you want to listen to.  To try musicovery out, you don’t have to sign up or anything!  You can just start clicking around your browser for a different song.

If you do decide to sign up for an account, you can ban crappy songs and favorite the best songs..  Musicovery is full of eye candy and incredibly easy to use.