Groove is in the shark

It doesn't quite look like it's the future, but it does give a sense of what the shape of the future may be: GrooveShark, a legal music sharing service which rewards you for passing on details about the music you like, is taking sign-ups for its test version. Oh, imagine if this caught on and the RIAA had to pay people to upload music on its behalf.

Naturally, the music is DRM free, too.