elgg
Elgg is an award-winning social networking engine, delivering the building blocks that enable businesses, schools, universities and associations to create their own fully-featured social networks and applications.
Elgg is an award-winning social networking engine, delivering the building blocks that enable businesses, schools, universities and associations to create their own fully-featured social networks and applications.
With BuddyPress you can build a social network for your company, school, sports team or niche community all based on the power and flexibility of WordPress. BuddyPress is completely free open source and allows you to stay in control of your site and create a totally customized, unique experience.