I saw this site in comments somewhere, but I don't know anything about them. They've got a petition encouraging politicians to put their various plans on video tapes, which could then be shown on TV or download on the internet. In the video the candidate can't mention their opponent.

I haven't signed the petition because it's a little late and there doesn't seem to be a way to get the list of current signers and thereby get an idea this is legit and at least a little popular.