We've got a few open positions at my company - jobs in SF and down peninsula. Also know of similar openings in Chicago, plus maybe LA & NY.
Decent pay - enough to afford living in SF as a twenty-something, great benefits, cool place to work.
Need some digital media buying/selling/managing experience - 1.5 years at an agency, client side, or with another publisher would be enough to get you in the door.
e-mail me for details: peterco @ yahoo-inc dot com
I don't check in here too often, so e-mail me.