This is a really fun site for finding new music. I made a artist profile on it thesixtyone.com/tf and within a day have had some nice feedback from users. It is a bit like many of the social bookmarking tools like Reddit and Digg but for music.

Here is how they explain the site.
"thesixtyone makes music discovery a fun, adventurous experience with persistent reputation and rewards -- it's like a massively-multiplayer game for music junkies who are always on the prowl for new sounds. For everyone else, it's a spot where anybody can instantly start listening to good new music... a place that personifies people getting excited about music simply because they enjoy it." ...

www.thesixtyone.com