Contextual advertising site becomes more popular. This type of online advertising attracts the target audience on the Internet resource. One of the most popular and effective methods of promotion of sites is contextual advertising site. Contextual advertising site is a text-graphic or banner ads online. Contextual advertising site appears in the pages of the search engines after the introduction of a specific request or on niche sites. Contextual advertising site is very efficient and not as expensive as other types of advertising. In the context advertising site often to pay for "clicks" that is, if a potential customer has gone exactly to your website. Contextual advertising site is included in the formation of the entire cost of the site. The cost of the site depends on its design, functionality, additional features and attributes, the methods of promotion and promotion.