StrawPoll - StrawPoll Meetings offers a simple interface to create polls that can be used to schedule meetings. With two simple steps, your next meeting is scheduled in seconds.
Twitter Polls - Polls embedded in tweets
Loqbooq - Decision log for your project.
Astral - A social network for augmented reality 📍
poal.me - Free, realtime, configurable, user created polls with pie charts as well.
Octotree - Github on steroids