GitHub Polls - Polls for GitHub issues and readme
Floobits - Floobits brings real-time collaborative editing to text editors, IDEs, and now Atom.
Polls for WhatsApp - Create & share quick polls in your WhatsApp groups
GitLive - Extend Git with real-time collaborative superpowers
Twitter Polls - Polls embedded in tweets
Keyory - Schedule periodic emails and get aggregated responses delivered right to your inbox with Keyory.