One troubling datapoint from Facebook's (FB) latest S-1 is that Q1 ad revenue growth fell to 37%...

|About: Facebook (FB)|By:, SA News Editor

One troubling datapoint from Facebook's (FB) latest S-1 is that Q1 ad revenue growth fell to 37% Y/Y. That's down sharply from the 69% rate posted for 2011, in spite of reports of improved monetization, and will add to fears Facebook isn't growing fast enough to warrant a $100B+ valuation. Payments revenue, which includes Facebook's 30% cut on Zynga (ZNGA -1.4%) virtual goods sales, rose 98% Y/Y, but made up less than 18% of sales. (more)