Having read this, I came up with the following. The biggest reason why P2P networks have become so popular is NOT that they're free. It's because they're simple and effective.I believe that the best option for an online music reseller (and the RIAA), would be to do the following:Set up a music download service like the *original* Napster. Give it a bunch of very high-bandwidth hosts. Give it a slick, non-bloat interface. And make it work just like a P2P program. Let different software vendors develop...