minipoll - Create simple shareable polls in seconds
Simple Poll - The easiest way to create polls in Slack
Tally.so - The simplest way to create forms, for free.
Curious Polls - Answer a question once a day for the chance to win £100/$100
Breeze - A project management software that your whole team will actually love using. The easy way to organize, plan and track progress on your projects.
Twitter Polls - Polls embedded in tweets