I don't know if this will work or not, but at least it shows that people are always coming up with new and interesting ideas. The folks over at Minimum Noise have created a collaboration site for musicians, where one can either seek help to complete a music project, or get paid for producing/mixing, singing, or playing an instrument.

So far, I believe the monetary rewards are probably too small, but if people do this in their spare time maybe this could take off anyway.

It's still cool :)