Mighty Networks - Mighty Networks enables entrepreneurs, organizations, and companies to create and grow a community-powered brand.
Nightout - The standard in event ticketing and marketing by NIGHTOUT
Nabble - Nabble is a forum software that are embeddable and fully customizable with scripting language.
Airbnb - Book unique places to stay and things to do.
Bigtent - BigTent is a web-based organization and communication portal for groups.
TickPick - Purchase tickets to your favorite events with no hidden fees