Facebook, the social networking site with over 200 million worldwide users, has faced criticism that it can ever generate enough revenue to justify its multi-billion dollar valuation.
Recently its Chief Operating Officer Sheryl Sandberg sat down with BusinessWeek's Editor-in-Chief Stephen J. Adler to discuss Facebook's side of the story. Since Facebook probably cannot charge users to supply the site with content, advertising will remain its revenue driver.
But what are the real prospects for social networks to deliver enough ad revenue? Here is how Sandberg