> Facebook will be doing $16 to $20 billion in profit within five or so years. With no user attrition, I think that prediction is pretty reasonable as their re

> Facebook will be doing $16 to $20 billion in profit within five or so years. With no user attrition, I think that prediction is pretty reasonable as their revenue per customer is still quite low with plenty of room to run. But if the fickle consumer starts to migrate elsewhere, as they are wont to do, and FB cannot purchase or build those elsewheres, then those forecasts could be in trouble.