It’s hilarious how you can be speculating one day about revenue models that Facebook’s Mark Zuckerberg should implement and then the next day you read an article on how he’s doing exactly what you were thinking he should do. I must have read about this somewhere and subconsciously packed it away in my mind.
The following article talks about how Zuckerberg is offering online advertisers the ability to register their audiences through the Facebook interface. Now Facebook will have your personal information and an understanding of what online ads are of interest. The monster continues to grow!!