urbansurf.me - Make friends around you & join local activities
Quora Writing Sessions - The popular Q&A platform launches their version of AMA's
Pindrop Security - Pindrop's call center software solutions help companies establish security, identity, & trust in call center voice interactions.
tumblr Answer Time - Like reddit AMAs, but on tumblr
Whale - Video Q&A with influencers and experts 🐳
Arise - Leave your procrastination demons behind (with pomodoro)