This is fascinating reading. But I’m not quite sure if I can still believe it. In summary, this article published on FaceBook states that any two individuals on our planet are separated by an average of four connections. Previously, it was considered to by six. But now, with the advent of social networking, it has decreased.
This means that you are four friendship clicks away from befriending anyone on the planet, if they were all on FaceBook. Crazy, but scary too.