Mucho Free Music

Stop giving the RIAA an opportunity to send takedown notices to YouTube regarding your inappropriate use of copyrighted music (funny how game companies are not worried at all) in your videos (read machinima) and start using some free music.

40 Ways to Download FREE Music Legally - at least some of these are free to listen but not use, others have Creative Commons licenses, others are in the public domain. I knew of ones like ccMixter and the SXSW torrents, but others I had never heard of.