Yup, people get paid for music file sharing legally, rather than prosecuted for file sharing illegally. People get commissioned for each music bought by colleagues or friends they are referring to.
This probably would available soon, as a recently discovered Microsoft patent application titled "Off-line Economies for Digital Media" describes how Zune owners can get paid for sharing music. This technology and system proposed by Microsoft is believed this system would essentially convert illegal music to legal music, which is applicable for Microsoft's Zune for sure.
Well, does it help ? Let see, now that illegal music from download sites distribute more music than legal site like iTunes or Amazon. Sharing, get paid and it's legal.