Free backing tracks online?

[keysandguitars]

I'm in search of website that have good backing tracks, either for songs, or just grooves to improvise over. I just started searching and came across this one for songs. Some are really cheesy midi files, but I've found some good Pink Floyd, Dire Straights, etc.

http://www.guitarbackingtrack.com/

[TNblueshawk]

This guy used the same site but he actually had a track with vocals on Voodoo Chile. Dude can play too.

http://www.buildyourownclone.com/board/viewtopic.php?f=8&t=34152

[LaceSensor]

sweet find, thanks

[stecykmi]

You can find a bunch on youtube as well, just search by genre and key.