What's the Value of a Network? Facebook Valuation Article

Robert Peck, the President and Partner of CoRise Co., LLC has an interesting article on Business Insider called "To Justify A $100 Billion Valuation, Facebook Has To Generate $400 Of Revenue Per Member."  In this article, he discusses the value of Facebook from the perspective of the network.  They derive a value per user implied by a $100 billion valuation, and then making assumptions regarding cost of capital, margins, growth rates, etc. determines the net present value of the revenues that the $100 billion valuation assumes for a Facebook user over its lifetime.  It's a different take on valuation.  Here's the link:   http://www.businessinsider.com/to-justify-a-100-billion-valuation-facebook-has-to-generate-400-of-revenue-per-member-2012-2