Former Facebook employees Adam D’Angelo and Charlie Cheever are the founders of this question and answer site which is gaining popularity for being one of its kind. D’Angelo once told “Q & A is one of those areas on the internet where there are a lot of sites, but no one had come along and built something that was really good yet” and you can browse the net to know its output.

People browse the internet with questions but Google isn't necessarily optimized for questions — it's optimized for keywords. Quora is optimized for questions and has a massive knowledge.  It is based in California and has been answering questions since June 2009.

Visit : http://www.quora.com/

to know more about it visit : http://en.wikipedia.org/wiki/Quora

visit quora india page : http://www.quora.com/India