Facebook Defends Ads As Quiet Period Ends
Wall Street Journal
Facebook, which has been in a quiet period since its IPO last month, has been criticized by some big brands and advertising agency executives who said there's no evidence advertising on the social network leads to consumers spending more money.
Facebook Says the Facebook Ads It Didn't Sell Work Great
Wall Street Journal reports that Facebook's growth rate is slowing
Is Facebook's Member Growth Slowing?