Target the ad based on the site the user is visiting, not on trying to violate the user's privacy. On a site to do with cars, show car ads. On a site to do wi

Target the ad based on the site the user is visiting, not on trying to violate the user's privacy. On a site to do with cars, show car ads. On a site to do with Dell, show Dell ads. It's not frickin' rocket surgery. If no one has a site relevant to your ads, there's your hint that no one wants your service/product. If you believe that I'm wrong... start one. Make a site relevant to that interest, and then you can on-sell your product. Build/find the community that believes in the same stuff you do, and engage them.