I don't think it is a matter of if, rather "when". Recruiters I know much prefer to find candidates on LI vs Monster and other services and I have a feeling this is only going to broaden and the appeal will continue to rise as future offerings and updates to employers likely roll out.

And, agreed that a price tag of $100 a head, if you will, is cheap in terms of value for marketing and recruiting/employment services.

On a side note, how I let this fall from my radar to get in on the rush at the bell and sell by lunch is beyond me. I hope others here weren't so lazy and picked up some cash.

4500 corporate customers, including 75% of the Fortune 100, are currently paying LinkedIn an average of $24k for recruitment services (ie. access to profiles for headhunting)

That is one of three revenue streams. All three have been growing 100% YoY, and ~60% of it is USA (ie. they haven't grown out internationally yet)