Community Server
PeopleAggregator
Social Platform
Web Crossing
Crowd Factory
CollectiveXSmall World Labs
Social Network Server
Sparta Social NetworksMzinga (Acquired Prospero, March 2008)
World Web (in German)
Dave Networks
Village Engine
Satmetrics (Formerly Informative)
KREM social networks (Netherlands)
List of 50 OpenSource Social Network Platforms
Enlace al artículo original de Jeremiah Owyang