Guestboard - Lead powerfully-organized group events with Guestboard – a modular event platform that gives groups of 10-1000+ people a central space to coordinate, build excitement, and save money. No more crazy email threads. No more massive group texts.

Nightout - The standard in event ticketing and marketing by NIGHTOUT

Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.

TicketHarbor - The safer Craigslist for P2P ticket exchanges

Mobilizon - A free and federated tool to get our events off Facebook

Sporteventus for iOS - The worldwide search engine for sporting events and tickets