Typeform - Create beautiful, next-generation online forms with Typeform, the form & survey builder that makes asking questions easy & human on any device. Try it FREE!
Twitter Polls - Polls embedded in tweets
Crowdoscope - A research tool for real-time collective intelligence.
Astral - A social network for augmented reality 📍
FreeSurveyCreator - With free survey creator you can embed a survey in your site and start receiving visitor feedback in no time. It is free and easy to setup
Octotree - Github on steroids