Let's say a website charge $8 CPM for a banner ad. At minimum. As an advertiser, how would you make money with that price? With $8 CPM, my guess CPC is $1 and more. And we're talking about banner ad here, not search engine. This kind of traffic is untargeted, people clicking by curiousity, sometimes people clicking by mistake .. if they click at all (isn't industry standard ctr is 0.5% or something?) I'm just curious.