Contextual advertising  - a version of the dynamic advertising displayed on pages of a site according to subjects of page on which she is placed.

It is possible to attribute(relate) to the most known and popular services of contextual advertising working in a Russian-speaking part of a network the InternetGoogle AdSense , the Runner, a Yandex. Direct.

Let's consider a principle of job of these systems.

All the participant of contextual advertising can be divided(shared) into two groups conditionally: advertizers and advertising platforms. To advertizers concern the web designer, having commercial projects and wishing to sell the goods / services, being advertised on other sites. Advertising platforms - those of the web designer which wish to earn, advertising these goods / services on the resources. Services of contextual advertising represent itself as intermediaries. They also incur functions on selection of platforms qualitative and interesting to the advertizer.

We shall consider a principle of job of contextual advertising on the part of an advertising platform. In fact us earnings on the site on which we are going to place advertising interests, first of all.

As already it was spoken earlier contextual advertising is a dynamic advertising. What is it means? Let's consider on an example. Let you have page, shall say about hamsters. After accommodation of a code of the advertising block, on your site special robots (bots) which analyze the text of page periodically come. On the basis of this analysis those advertisements which to the greatest degree correspond(meet) to your page (are relevant) get out. I.e. in our case, at you on a site the advertising connected to hamsters or close on subjects (under condition of presence of advertizers on this subject) will be placed. If, for example, through any time you decide to change the information on this page and, to write we shall say about birds after a while the same robot will analyse changes and announcements on the "bird's" subjects will start to be broadcast. Thus, you on a site always (or nearly so always) will have announcements which can be really interesting to visitors of your site.

After registration in any of the above mentioned services we as though offer the site as an advertising platform. After successful passage moderating (approval) on the part of service of contextual advertising it is necessary to establish a special code on those pages of own site on which it is planned to place advertising. Before accommodation of the given code it is necessary to familiarize closely(attentively) with all rules and conditions in concrete service. So, for example, the Runner forbids accommodation of advertising on the main page, Google AdSense does not allow to place advertising blocks on pages with gambles, etc. Remember, that infringement of these rules can then very expensive you do without!

Installation of a code, perhaps, one of the important points. It would seem that in it complex(difficult)? However, your earnings depends on correct accommodation of a code directly and can differ in some times, and sometimes and on the order. First of all, it is necessary to choose correctly a format and color registration of the advertising block. Try to not break design of page and to use the same color registration for advertising. Use of larger on the size of contextual blocks usually raises number of cliks under announcements. However, it is not necessary to overload page with advertising. It will be the best way, if you will experiment. Periodically change an arrangement of blocks on page and change color registration. Approximately in a month you can pick up the most optimum formats for your site.

It is necessary to note, that various systems of contextual advertising show various requirements to advertising platforms. So, for example, in Google AdSense strict requirements on attendance it is not showed, in the Runner for quite some time now began to accept sites on free-of-charge hostings. Contextual advertising Smart-Click also supposes the sites located on a free-of-charge hosting under certain conditions to participation.

The main and basic requirement to a site, wishing to become an advertising platform, - an audience interesting to advertizers.