Pandora

I recognize I'm probably way behind the curve on this, but I just started using Pandora. If listening to music you like for free and trying some new artists in the process sounds good to you, it's worth a try.

"Pandora is the doorway to this vast trove of musical information. With Pandora you can explore to your heart's content. Just drop the name of one of your favorite songs or artists into Pandora and let the Genome Project go. It will quickly scan its entire world of analyzed music, almost a century of popular recordings - new and old, well known and completely obscure - to find songs with interesting musical similarities to your choice. Then sit back and enjoy as it creates a listening experience full of current and soon-to-be favorite songs for you."