wayne - 9:27 pm on Dec 10, 2004 (gmt 0)
It might be that the user sees the same domain in multiple ads, and are skipping over the rest of the ads, which would be costing Google a lot of money with less click thrus. I don't think there would be as many ads for the same product if affiliates had to create their own site, it is just too easy now for someone to pick out a few keywords and add the affiliate url, they could put up quite a few campaigns in a short time this way. If they had to actually create their own site to promote the product, it would at least take them some more time to put up their campaigns. Now they are just like advertising agencies.