Decidr - Make better decisions with quick A/B polls
WhoAreMyRepresentatives - Quickly find all the government officials who represent you
Go Fucking Do It - Set a deadline and a price. If you fail, you pay.
Referenda - Fostering a new age of digital activism
AbTest.io - A free url shortener with A/B testing features
Politweets by Whole Whale - Help supporters tweet your message to their political reps