&gt; Is that reasonable? If so, isn&#x27;t FB&#x27;s market cap a little silly?<p>Facebook&#x27;s market cap is $267.7B, which would be totally justified at $115B in revenue.<p>Also keep in mind that the 1.27% is not fixed. Advertising has fluctuated as high as 2% of GDP, which leaves plenty of growth potential for Facebook and Google.