Three years ago, the main internet search engines initiated the extinction of the link farms (link farms) and the farms of content (content farms). The intention of these farms -formed by a network of domains and web sites-, was ‘tricking’ the search engine and improve the positioning SEO of the pages themselves so ‘unnatural’. As we already know, better rankings, greater visitors. And the more visits, the more expensive it is to sell advertising space on the web. The business of the phishing pages was host banners and links for customers. The value and the quality of the content was the least of it.