First, let's define some terminology to talk to you in one language. Target visitor – a potential buyer of the goods advertised. Keyword (phrase) – a word or phrase that user uses to find specific information in the search engine. Target audience – a group of people targeted in advertising and promotional activities. The main and most important to the advertiser category of recipients of the advertising reference. serp ("crescent" – a portmanteau. serp – Search Engine Result Page) – issuance of search results for any query, sorted by relevance. Thus, among a wide variety of different types Internet advertising are the following major groups: Media advertising (banner); Contextual advertising; Progress in the search engines (site promotion); Newsletter advertisements.

Other species Internet advertising to some extent will relate to these four groups, or are not sufficiently significant. Just want to say a few words about the last group of advertising and not to return to her. Newsletter ads can be of two types of address when the recipient knowingly agreed to the receipt of this distribution, and mass, better known as spam (sending of advertising on various types of channels of communication without the consent of the recipients). Mailing of, first, occupies a very small market share, and, secondly, often aimed at supporting older audience than attract new. Spam, in turn, is a fully legitimate form of advertising, and therefore do not dwell on it desires. The same group advertising "Newsletter ads" could be considered, which has recently become popular, viral marketing, but rather refers to marketing techniques (tools) than to advertising on the Internet.