[nikcub]

PE ratios are for yield businesses that have been around for decades and with nowhere much to go

With LNKD you should be looking at revenue, competition and market penetration (rev is doubling yoy, three sources, 4500 business customers paying avg. $23k a year, 75% of fortune 100, 60% USA - which means they have a lot of growing to do). they are spending everything that comes in on product development, sales and marketing and R&D - it is all growth phase. $400M revenue this year.

To add - LinkedIn isn't really a 'social' company either since its revenue is not based on ads. They are in the recruitment market, where companies are known to pay tens of thousands of dollars for recruitment leads. And in that regard, they still aren't even exploiting their position as much as they could be (which means they have a lot of room to grow both out and up)

If they wanted to impress skeptics they could cut back all sales and marketing and development and just bank the 450M and pay out a dividend, in which case it would be a market cap of ~$4B, and a lot more love in comment threads on the internet :)