image libraries will sell a lot of pics of hot looking business women over the next couple of weeks, for sure. I think there's going to be a big market for fairly industry specific ones, certainly in sports, geek toys etc. Not sure what will help with the girls products though - perhaps that cat video will come in handy
If google are talking rolling out to PPC I assume they've had reasonably high CTR from the testing. Its a pain in the arse for deeper pages though, if you have to psychoanalyse every page for whether it'll drive clicks its going to add some overhead. And another thing to charge for I guess.