Everyone knows the metrics by now, the end of Facebook’s first day of trading: Market Cap = 112.6 bln.; 107x last twelve months (LTM) earnings; 26x LTM revenue. That's a whole lot of expectation to fulfill.
How will Facebook grow into that valuation? What is discussed most frequently is the addition of a next generation user who will access the site via smart phone instead of computer. Facebook has also said it will add mobile advertising along with new ads to reach users when they log off Facebook’s web site.