It really should be noted that no company with Facebook's P/E ratio has maintained that level for a long term. Facebook is still so overvalued that it will cert

It really should be noted that no company with Facebook's P/E ratio has maintained that level for a long term. Facebook is still so overvalued that it will certainly come down from where it is now. If it doesn't, it would be the first company to do so. Even if it were to increase it's earnings, just a quick glance at Google Finance shows it's P/E 2,231. Regardless of other financials, that ratio is so off the wall that it could not be justified without an unprecedented amount of earnings growth. Making the claim that Facebook is the greatest company in the history of public companies is a stretch. [1] Cliff Asness of AQR's "Bubble Logic": http://papers.ssrn.com/sol3/papers.cfm?abstract_id=240371 http://papers.ssrn.com/sol3/papers.cfm?abstract_id=240371