Here is an interesting site. Hard to categorize it, but it is fun and interesting! I find it fascinating!
As an added bonus I have included the “Best of Quora – 2010-2012” as a pdf attachment.
Quora’s mission is to share and grow the world’s knowledge.
Quora is your best source of knowledge. Ask any question, get real answers from people with first hand experience, and blog about what you know.