Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.
Gyroscope - Gyroscope is a personalized dashboard for tracking your life.
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
Exist - Track everything in one place, understand your life.
Bigtent - BigTent is a web-based organization and communication portal for groups.
Hero Panel - A productivity dashboard for Super-Humans.