Weakish demand for the Facebook (NASDAQ:FB) IPO isn't a surprise for Minyanville's Conor Sen,...

Weakish demand for the Facebook (NASDAQ:FB) IPO isn't a surprise for Minyanville's Conor Sen, who says the public markets are doing a great job sifting through new share offerings. The revenue growth isn't there, he tweets. If Facebook grows revenues at 20-25% in 2012, give it an 8X sales multiple and call it generous ... that's $40B.