I just received this personal letter from MoveOn:

Dear MoveOn member,
The US occupation in Iraq has left American soldiers unprepared and vulnerable, the country degenerating into chaos, and the Iraqi people embittered and hostile. Now the President is asking Congress for a staggering $87 billion blank check to fund more of the same. Until he takes strong steps to correct this failure, Congress shouldn't give him a cent. President Bush needs to fire the team responsible -- starting with Defense Secretary Donald Rumsfeld -- and transfer authority to the United Nations. Please join us in telling Congress to hold on to our money until President Bush changes his team and changes his course in Iraq. You can send an email to your Member of Congress and sign our petition at:
http://www.moveon.org/firerumsfeld/

Okay, okay. It was a form letter by email. But still, this organization has done amazing things just in the past few months, such as the online primary and the petition to the Senate about the FCC rules. If you haven't already joined, you should give it serious consideration. Go check out MoveOn.