Are there any sources out there for net income results for Facebook? Even estimated? There are rumors that Facebook is pulling in between 1.5b to 2.0b dollars

Are there any sources out there for net income results for Facebook? Even estimated? There are rumors that Facebook is pulling in between 1.5b to 2.0b dollars a year in revenue. EBITDA values would be crucial here in determining how good of an investment Facebook would be. It will be very interesting, because Groupon is about to approach the open market with some very dubious, if not scary EBITDA numbers.