Thanks for bringing this up. This is a great idea. I think the most effective thing would be to contribute to Pederson's campaign, which you can do by credit card or debit card on his website:
http://www.pederson2006.com/
This idiot Kyl is the main senator pushing this BS bill, and if he loses the election the bill will probably never come up again. If he wins, I guarantee you that he will try to get it passed again next year even if he can't get it done this year, so defeating him should be a top priority of every poker player.
Talk is cheap. We all need to put our money where our mouth is. It doesn't have to be much. Just contribute what you can afford. I'm going to do it, and I urge everyone else who wants to continue to be able to play poker on the internet to do it, as well.