www.linkedin.com LinkedIn: is a business-oriented social networking site founded in December 2002 and launched in May 2003mainly used for professional networking. As of December 2007, its site traffic was 3.2 million visitors per month, up 485% from the end of 2006. As of October 2008, it had more than 30 million registered users, spanning 150 industries. In summer of 2008, LinkedIn launched LinkedIn DirectAds as a form of sponsored advertising. LinkedIn's CEO is Dan Nye. As of February 2007, founder and former CEO Reid Hoffman, previously an executive vice president of PayPal, remains President of Product and Chairman of the Board. LinkedIn is located in Mountain View, California, and funded by Greylock, Sequoia Capital, Bessemer Venture Partners, and the European Founders Fund. LinkedIn reached profitability in March 2006. LinkedIn also has offices in Omaha, Chicago, New York, and London. On June 17, 2008, Sequoia Capital, Greylock Partners, and other venture capital firms purchased a 5% stake in the company for $53 million, giving the company a post-money valuation of approximately $1 billion.
