Sorry Ben, I gotta go with the RIAA as most evil. They're shutting down internet radio, as well as sites like Pandora. Pandora is an important music community site. The piurpose of the site is to follow your choices of music, and works from those choices, be it an artist, song or album, and creates a station based off of that choice. From there, it'll define songs with different qualities, so that if you did something like put They Might Be Giants in, you'd get other quirky rock bands. Put in MC Frontalot, and it would work both the hiphop and geeky angles, etc.
http://www.savethestreams.org/