According to Ad Age:
Scratch Facebook from the list of web 2.0 startups that don’t make money: The world’s largest social network said today it has become profitable.
Co-founder and CEO Mark Zuckerberg said Facebook had crossed the 300 million registered-user milestone and that it had become “cash-flow positive” in the second quarter, ahead of schedule. Previously, Facebook had said it was targeting profitability “sometime in 2010.”