Facebook Muscles in on Google's Ad Revenue

"As the social network steams past 650 million global users, its business is looking more like Google's in that the majority of its ad sales now come from small- and medium-size companies that make use of its self-serve ad system, a model that turned Google into a $200 billion behemoth during the past decade," goes the post on AdAge. "According to an estimate from eMarketer, Facebook took in $1.86 billion in worldwide advertising revenue for 2010, a 151% increase over the company's estimated 2009 advertising revenue of $740 million worldwide. Not surprisingly, the majority of that, $1.21 billion, was earned inside the U.S."