Code sharing host GitHub has raked in a massive capital infusion from Andreessen Horowitz. The $100 million Series A round marks the company's first outside financing. Currently valued at a reported $750 million, GitHub was already profitable prior to the VC boost. The new funds will go towards further development of the enterprise version of GitHub. In conjunction with the deal, Andreessen Horowitz partner and XenSource founder Peter Levine will become a board member.