> free social websites Online advertisements generate less and less money (CPC and CPM earnings) for websites. There is a need for advertisement-networks that

> free social websites Online advertisements generate less and less money (CPC and CPM earnings) for websites. There is a need for advertisement-networks that offer less intrusive ads so that not half of the visitors use an ad-blocker. (Ads that follow me around and show me products I just bought on Amazon isn't very helpful and often just creepy.) Idea: What about ads that are related to the page/article-content? The ads network would have to crawl the page after the first visit of a user and analyze & categorize it. For the second visitor it can already show an ad that is related to the content.