Communifire - Enterprise Social Collaboration Software
Mighty Networks - Mighty Networks enables entrepreneurs, organizations, and companies to create and grow a community-powered brand.
DigitalChalk - Online Training Software and Learning Management System (LMS)
Bigtent - BigTent is a web-based organization and communication portal for groups.
Workplace by Facebook - Connect everyone in your company and turn ideas into action.
Nabble - Nabble is a forum software that are embeddable and fully customizable with scripting language.