One Third of U.S. Online Ads Now Served By Facebook
According to comScore 1.1 trillion ads were served to U.S. Internet users in the first quarter of 2011. Of those 1.1 trillion ads, 346 billion of tho...
According to comScore 1.1 trillion ads were served to U.S. Internet users in the first quarter of 2011. Of those 1.1 trillion ads, 346 billion of tho...