http://www.last.fm/
I posted my Last.fm profile on another forum I post on because I like seeing what sorts of bands other people listen to but no one else's music compatibility with me has gone above "very low."
So of course this would be the place to get some more compatible friends, I reckon!
My Last.fm:
http://www.last.fm/user/Zelas/
Basically, for those who don't have it, you get a little plugin for your media player and it logs the music you listen to and tracks it so you can see stats and get recommendations based on what you listen to. There's a lot of other features but I don't use any of them. So go check it out if you haven't already. If you have, add me!
Sorry if this belongs in that Shill forum. If it does and you have the power to move it there then knock yourself out.