This isn't entirely relevant to the matter of selling domains, but it is a question that is interesting to me...

I was discussing the relative value of a couple of similar generic domain names with someone who runs a big domain auction house, when he talked about domain's Google pay for placement results for the keyword in the domains, and how that might affect those domains' values.

I've been a long-time AdWords user, and not heard anything about PFP in years, so I was surprised to hear that Google was even in this business!  Can anyone describe how Google's "pay for placement" service works?  Can one tell how much people are paying for placement in a similar way to how you can use bid tools to get a sense of Adwords bidding?