what do the ad networks stand to lose? It's less about the actual ad networks. It's more that the sites who display ads that are better targeted and have a hi

what do the ad networks stand to lose? It's less about the actual ad networks. It's more that the sites who display ads that are better targeted and have a higher click through rate can charge more money for them and run fewer of those specific ads as a consequence. Businesses that are able to better target ads at people who might actually be in the market based on recent browsing behavior can spend their advertising money on reaching a higher quality audience. The alternative is that you get a spray of all kinds of ads that have no relevance.