The highest earning form of advertising for a content farm is Google. The fundamental concept of a content farm is to have mountains of content about any possib

The highest earning form of advertising for a content farm is Google. The fundamental concept of a content farm is to have mountains of content about any possible topic. The only ad network with inventory deep enough to cover this is Google. The difference being single digit CPMs verse triple digit. When Google created Adsense it built an ecosystem. While other search engines lost users as soon as they clicked on a link, Google had a fairly high percentage chance that user still made them money. I don't know if the future looks much better. What Larry Page is saying that instead of display a link of Stack Overflow results he would like to scrape the answer to the query in a way the user never has to go there. The way they will make money from advertising with that model looks even worse.