Double - Tinder for double dates
Mighty Networks - Mighty Networks enables entrepreneurs, organizations, and companies to create and grow a community-powered brand.
Hater - The dating app that matches you based on what you hate
Bigtent - BigTent is a web-based organization and communication portal for groups.
Tinder - Tinder is how people meet. It's like real life, but better.
Nabble - Nabble is a forum software that are embeddable and fully customizable with scripting language.