The RIAA has consistently attempted to sue P2P network users by claiming that "making available" copyrighted works violate's the copyright holder's exclusive right of distribution under Copyright Law, but yesterday, the RIAA's $220,000 verdict against Kazaa user Jammie Thomas was set aside after the judge declared a mistrial. This decision is significant because the RIAA will now have a substantially higher burden of proof for infringement; they will need to show affirmative steps toward distribution aside from making the music available in their shared folders.
You can read the decision here .