I am a member of MoveOn and its younger siblings Avaaz (global "MoveOn") and Step it Up ("MoveOn" against global warming) and I think they are all great. I can sign a petition or donate to run a political ad or even call my Congressman, and I've done all three actions for these organizations.

Still, I don't think this hub-and-spokes model of political activism shows the full political potential of the net. The promise of Web 2.0 is that we can all be content creators yet, for all its success in involving citizens in politics, MoveOn and its siblings are