If you're planning to give to a campaign (I'm talking Democrats here), one of the best places to figure out where to put your money so it does the most good is Eschaton. Along the left side of his page are links to almost all of the campaigns and committees for President, Senate, and House candidates.
Another good place to follow the races is Daily Kos. If you're a wonk and love polls, Kos does a fine job of keeping up with them and disseminating the latest information.
Something to do while I'm fixing your piece of shit car today. Later.