It’s going to cost us approximately $30,000 to raise the money we need to file the challenge. We’re raising that money here (http://www.eff.org/save-podcasting).
We’re looking for “prior art” (publications that disclose similar or identical ideas to those in the patent). In this case, we need to find publications from before October 2, 1996. The “ideas” in the patent essentially include any sharing of episodes over the Internet.