Many of you may have heard of Quora which has grown massively in the last year. Founded in 2009, only being made publicly available on June 21st 2010, by former Facebook CTO Adam D'Angelo, the 25 year old has seen the question and answer site gain huge amount of press.

Quora aggregates questions and answers into topic categories allowing users to collaborate on them. The knowledge organisation site has been popular with many professionals and entrepreneurs, helping share knowledge quickly.

Founder Adam was inspired to create Quora as he feels "that 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."

The site gives users the opportunity to vote up or down comments to ensure that answers seen as most relevant and useful appear at the top and those marked as not useful are collapsed ensuring that the quality of answers are kept to a good standard and people don't have to find a good answer in amongst spam.

D'Angelo previously was the CTO at Facebook after he met Facebook founder Mark Zuckerberg when he was studying at Phillips Exeter Academy. He decided to stand down from this position in June 2009 after 2 years at Facebook, to start Quora.

He had a great position at a massive company in Facebook but his entrepreneurial spirit came alive when he had the idea for Quora and now wants to build something just as big.

In March 2010 Quora was valued at an incredible $86 million after receiving $11 million in funding from Benchmark Capital.

If you haven't checked out Quora yet, why not? Take a look, it is set to become another big name in social media.

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