Twitter Polls - Polls embedded in tweets
Floobits - Floobits brings real-time collaborative editing to text editors, IDEs, and now Atom.
Curious Polls - Answer a question once a day for the chance to win £100/$100
One Degree - The Human Search Engine
Astral - A social network for augmented reality 📍
Keyory - Schedule periodic emails and get aggregated responses delivered right to your inbox with Keyory.