GitHub Polls - Polls for GitHub issues and readme
Simple Poll - The easiest way to create polls in Slack
Twitter Polls - Polls embedded in tweets
Curious Polls - Answer a question once a day for the chance to win £100/$100
minipoll - Create simple shareable polls in seconds
Urbanpinion - Citizens engagement platform that lets you create a landing page with an interactive map in just a few steps, launch a survey and collect citizens' ideas and votes - and make the right decisions for the city development.