[viscanti]

The biggest reason Facebook has a 100 Billion valuation is because people expect ad revenue to grow rapidly. If there are signs that's slowing down now, before they even go public, it has a huge impact on their valuation. 100 Billion is a very generous valuation, even if you expect Facebook to have tremendous growth, it's an outrageous valuation if you expect them to stay the same (or shrink).

[ChuckMcM]

Well if they do manage to do 5B$ revenue this year 100B would be a 20x multiplier on their revenue. Seems in line with other tech companies. But we'll have to wait until they start pushing out those quarterly reports to be sure.