It's hard to believe that a fb board member could make more accurate revenue predictions than random people with strong opinions commenting on HN ;)
gojomo: "To be specific, I will bet $100 that Facebook's annual revenue will reach $2 billion/year by 2014. Do we have a bet?"
jacquesm: "absolutely."
src: https://twitter.com/#!/goldman/status/164830894685818880
For example, there are an estimated 2 billion people online today, compared to 360 million in 2000.
The IAB estimated $1.7 billion total spend on online advertising in 4Q 2003. In 2011, over $7 billion in a quarter, a 7x increase. (http://www.iab.net/about_the_iab/recent_press_releases/press...)
http://sec.gov/Archives/edgar/data/1288776/00011931250407363...
I saved this when I came across it a while back. Also, they had $961mm in net income the year they went out