Data and growth is impressive but the monetization and financial perfromance of Facebook is one of the worst:

http://plentyoffish.wordpress.com/2006/12/14/new-monetization-hype/

and look at numbers here:

http://72.14.205.104/search?q=cache:thoUwXzOOQsJ:valleywag.com/tech/advertising/facebook-consistently-the-worst-performing-site-242234.php&hl=en&ct=clnk&cd=1&

Good evidence, as if any was needed, for an inverse correlation between four-year-college admission and clickthrough rates.

Absolutely true. From my own expirience, smart people just don't click on advertising and most of them have some kind of an ad blocking software installed. Myspace crowd is a lot more diverse than Facebook's so Myspace performs a lot better in CPM. Monetizing smart crowd that's averse to advertising is one of the toughest problems any social site will face. Another one is monetizing very young crowd (13-17 year olds)... they just don't have much disposable income.... that's Digg's problem.

Who needs monetization? In this day and age, eyeballs are everything.

What happens when ad recession comes? Ads are cyclical too...

Anyone know what the leveling-off in Apr 06 was?

Now all we need is one for Facebook's paying users.