How to such ads is that you first introduce your website to an advertising agency. If you enjoy a good ranking by buying Alexa ranking and SEO site and benefit from the production of relevant content on your website. Then a code is presented to you in the text. Those codes the user in the event of a sufficiently intelligent advertisement related to the topic of the website and the article, so that the visitor may not even notice the difference between the existing ads and the text of the article. To differentiate the ad placed on the main text of a label (usually referred to as advertising or content) across the web above that advertisement. This kind of advertising is usually ten times more than banner advertising, because of its existential structure that does not disturb.