The net income is marginally different and the gross revenue is almost 50% more. I don't think you're giving it a fair assessment. Also, Google's IPO P/E was ~

The net income is marginally different and the gross revenue is almost 50% more. I don't think you're giving it a fair assessment. Also, Google's IPO P/E was ~80, and shortly after IPO the P/E shot up to 160, so again I don't think you're giving Facebook a fair assessment.