If this was open source software that people could install on their own hosting account (PHP/MySql) as a kind of personal social app then great and social meant

If this was open source software that people could install on their own hosting account (PHP/MySql) as a kind of personal social app then great and social meant loosely linked distributed nodes then that's exactly what I'm looking for. If you are going to compete directly with Facebook, and manage to get funded and build a good team, then welcome your forthcoming Facebook acquihire. :-)