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In 2008, Jeff Atwood and Joel Spolsky created a site called Stack Overflow and brought together millions of computer programmers from around the world to help each other with detailed technical questions. That site was a phenomenal success, so, after securing a $6 million investment from Union Square Ventures, they created the Stack Exchange Network and started launching new sites in August of 2010. There are now 88 separate sites and over 42 million monthly unique visitors (as of April, 2012) and growing!
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