agreed. I think the OP would be shocked to learn about the insane practices you have to deal with buying from 'less reputable' types of ad networks. think popun

agreed. I think the OP would be shocked to learn about the insane practices you have to deal with buying from 'less reputable' types of ad networks. think popunders, banners, full page take overs, etc. Think buying traffic which you know is 90% accidental, or buying traffic where 100% of the audience does not want to see your ad. Or even ads that literally disrupt user experience. There are people buying these ads for a profitable purpose and making buckets of money. In my experience, literally ANY CPC based platform can be profitable. The only time i've seen advertising never work is in the banner / media buying industry, but that's just my personal experience. It wouldn't be a billion dollar industry unless a few people were making it work for themselves.