I miss the old Compuserve. I’ll bet a similar forum engine could be built without the single-track exclusiveness.
I sympathize with both sides of the PRS/youtube negotiation, because each is charged with getting the best deal for its side in a time of uncertain market values.
Single-minded focus on more open licensing music is a lot more fun, and also small-business-doable. A major label could come up with a small-site-friendly license and mass license. Barring that kind of vision, though, more open source music is the way to take the big box stores out of the equation and to put mom and pop net sites in operation.