Can you make money with music on YouTube?

While I'm not a musician, I'm always checking out ways to promote and make money with various types of creative work.  This 5 minute video has a ton of solid info on what it takes to make money with music (or other content) on YouTube.  If you bootleg music for your videos, you should watch this, too.  Basically, it's hard to make much money on YouTube unless you're in a decent sized niche and your stuff goes viral.  But there is money to be made if you can pull in the views.  For most people, though, it's better to view YouTube as promotion, and try to make your money some other way.