Have you visited MoveOn’s website lately? MoveOn.org: Democracy in Action
MoveOn is run by its members – you and me. Completely. They only have 17 employees. MoveOn is about what YOU want the organization to do.
From their About page:

With over 3.3 million members across America – from carpenters to stay-at-home moms to business leaders – we work together to realize the progressive promise of our country. MoveOn is a service – a way for busy but concerned citizens to find their political voice in a system dominated by big money and big media.
… Every member has a voice in choosing the direction for both MoveOn.org Political Action and MoveOn.org Civic Action. Using our ActionForum software, you can propose priorities and strategies. Both organizations also take the initiative to organize quick action on other timely issues that our members care about.

If you are not a MoveOn member this is a good time to sign up.