GRA4 Social Network is a free component, arming Drupal-powered website with full-blown social networking functionality.
After single three-minute-long installation your website will have social features: activity streams, likes, friends, groups, messaging, blogs, market, and much more.
What this extension is for: Big social networks put plenty of websites out of business, because anyone can create a group on a major Social Network (such as Facebook, VKontakte, LinkedIn, Odnoklassniki, etc.), and it's much easier than to build and support your own website.
We want to get web-masters back into the game, arming them with the same functionality the "grown-up" social networks have.
See the Demo:
http://drupal.ucq.me
For more info feel free to look through the wiki documentation:
http://wiki.gra4.com
You also can get Joomla with GRA4 Social Network on the free hosting:
http://ucq.me
Before you install, please make sure you have the current version:
http://gra4.com/file/group/99/all