Introducing SignOn.org: Your Petition + MoveOn's 7 Million Members = Brilliant

From demanding justice for Trayvon Martin to saving a small, beloved book store, Americans just like you are learning how to get a lot of people to sign on to their causes. Here’s how they did it (and you can, too):

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Save the Senate

The latest polls show Republicans are poised to take control of the Senate this November if progressives don't show up to vote. We've got a plan that's proven to be effective, but it can't happen without you …