The 5 Best Open-Source Social Networking Software: "Overall, Elgg is a powerful software that offers blog, networking, community, collection of news using feeds aggregation and file sharing features. In fact, it is one of the most versatile pieces of software that offers almost everything you need to start a social networking site.
Elgg operates on a LAMP (Linux, Apache, MySql and Php) environment and it is easy to install and configure. With a little php knowledge, you can get your social networking site up and running in no time."
'via Blog this'