Facebook Is Closing the Ad Revenue Gap with the Portals

Facebook’s self-serve ad product apparently generated $300 to $400 million in revenue in 2009, a significant portion of the $800 million or so Facebook generated in total. The self-serve system allows advertisers to create small ads that appear on the right-hand side of Facebook pages and then target the ads to segments of the Facebook audience.

Facebook Is Closing the Ad Revenue Gap with the Portals - The eMarketer Blog