I'm a little confused, because I thought the market cap at $38/share was over $100B.
But Yahoo! Finance is showing $51B now:
http://finance.yahoo.com/q/ks?s=FBEither seems hard to justify to me, given they have $4B in revenue a year. Everyone is already a member, so where will all the dollars come from to justify that valuation?
To put it in perspective, Facebook's valuation is approaching that of Intel. The valuation exceeds Alcoa, Ford, and 3M combined.
Facebook is neat and important, but I don't understand the price.