http://www.lockergnome.com/media/2011/12/19/how-to-remove-vocals-from-a-song-using-audacity/

This is the next in our series of screencasts recorded by people in our community! You can always submit your own, you know. I'm still looking for more good screencasters. Daniel has created this short tutorial for us to show us how to easily remove the vocals from any song using the free Audacity software.

http://go.tagjag.com/screencast
http://chris.pirillo.com
http://twitter.com/chrispirillo
http://www.youtube.com/livetechaustralia