Music Genome Project

I recently discovered Pandora.com, a free music site designed to introduce music lovers to bands they might like. You create a "radio station" by entering the names of one or more bands or songs you like, and the program searches a database for songs/artists deemed similar to your selection. So far, I made three stations, a Rolling Stones station, a Cure/Clash/David Bowie station, and a hipster station (Devotchka/Arcade Fire). The Stones station plays rock bands like Led Zeppelin and Pearl Jam, plus some other (new, I presume) bands I've never heard of. The other two stations play mostly music I'm unfamiliar with, but so far, I like most of it.