"... I'm not 100% sure, but I suspect that once Facebook had about 5-10 universities they were unstoppable. Once you have 5-10 universities, you're going to get

"... I'm not 100% sure, but I suspect that once Facebook had about 5-10 universities they were unstoppable. Once you have 5-10 universities, you're going to get all the rest. ..." It wasn't that easy according to "The Facebook Effect" ~ http://www.amazon.com/Facebook-Effect-Inside-Company-Connecting/dp/1439102112/ref=pd_sim_b_2 http://www.amazon.com/Facebook-Effect-Inside-Company-Connect... Competitors existed but Facebook had 2 things going for them that the others did not - a) A fast school addition tool allowing Facebook to quickly add new universities & b) A strategic thinking founder who realised if you added universities around existing sites (friends, associates of the target university) you could pull in enough of the users of their competitors sites to render them ineffective. Such is the power of the "social graph" and relentless determination.