Mighty Networks - Mighty Networks enables entrepreneurs, organizations, and companies to create and grow a community-powered brand.
Glympse - Glympse is the easy way to safely share your location in realtime. No sign-up needed.
Bigtent - BigTent is a web-based organization and communication portal for groups.
OwnTracks - Cross-platform location sharing
Nabble - Nabble is a forum software that are embeddable and fully customizable with scripting language.
Zenly - Zenly is a GPS tracker to locate your friends in realtime.