The social network now has more than 650 million global users and, according to eMarketer, it took $1.86 billion in advertising during 2010. That's an increase of 151% on 2009's figure of $740m. Most of the 2010 total, some $1.21bn, was earned within the US, which probably comes as no surprise.
What's more of a surprise is that 60% of 2010's ad revenue, some $1.12bn, came from smaller companies which used self-serve tools rather than dealing through media agencies. Major marketers such as Coke, Proctor & Gamble and Match.com generated $740m for Facebook."