Floobits - Floobits brings real-time collaborative editing to text editors, IDEs, and now Atom.
GoodUI Evidence - People's A/B test results that show which UI ideas work best
GitLive - Extend Git with real-time collaborative superpowers
Decidr - Make better decisions with quick A/B polls
Keyory - Schedule periodic emails and get aggregated responses delivered right to your inbox with Keyory.
PreFlight - Preflight is an Automated Web Testing tool. Allows everyone to automate Web UI tests.