
Referring himself to Facebook as "The Thing", he declared that it can be making billions in revenue in just five years.
I'm not really sure where did he get the 5 year time period, however, as today, the ROI for advertising campaigns inside Facebook hasn't been as expected.
Have you noticed the presence of a big company in Facebook advertising? or a big advertising agency offering campaigns inside Facebook?
Even with the 225 million Facebook users, it will be very hard to compete in advertising with Google and even with Yahoo.

Facebook currently displays ads only in one section of the page. A maximum of 2 ads are displayed on the screen at the same time and the ad changes only when the page is refreshed.
Since the News Feed on Facebook can be updated without refreshing the screen, the user can be watching the same ad for the entire day.
"Ads And Pages" is the Facebook application used for creating marketing campaigns. It misses a lot of features specially if you compare it with the Google Adwords tool.
According to Facebook, campaigns can be targeted by gender, age and keywords. (It is unclear how do they use the keywords) . Place a single word keyword on the ad options and you will see how your audience is dramatically reduced.

