Backing tracks

If you know a good site for backing tracks post a link so we can all check'em out.

Here is a good site for blues.

http://www.torvund.net/guitar/index.php?page=Backing_blues

http://www.jamcenter.com/

heres some online jam tracks, fun to play with. this might be a good topic to sticky

www.guitarbt.com

biggest site ever,im a proud admin too!! been there since i started playing guitar,i learned everything i know there,the forum is thead now tho,but the backings are still available

www.riffoftheweek.

Not a huge selection of backing tracks, but some good stuff to jam to. The website is run by the guitarist of Steve Vai's band (or at least was). He's got some great chops :-P

since you asked for it, let me invite you to check out

http://www.wikiloops.com

its a fresh project with free user-recorded backing tracks, I've been active there a bit lately.

http://www.guitarbackingtrack.com/

You can also write in backing tracks in the youtube search.