Contextual advertising

 Contextual advertising is a word or some words in the text articles representing the link to a website of the advertiser. The content of contextual advertising will depend on a site subject on which it is shown.    Google AdSense – perhaps the most popular system of contextual advertising for earnings on a website, but is as well much others. To start work in them you should be registered in an advertising network and insert HTML- code on your website.    The systems of contextual advertising will place contextual announcements (either the text or images), relevant to a subject of your website, and you will earn the certain sum of money for everyone click under this advertisement.    Your earning from contextual advertising with payment for clicks depends on the traffic of the website and that is the most important, from the relation quantity of clicks under the advertising to quantity of its displays (CTR - click-through rate) and costs for click (cost per click - CPC). Placing of announcements around or their mixing with a content, will lead to higher relation of quantity of clicks toquantityof displays. The price for click also depends on quality of the website and its subject. A mortgage, real estate, financial products and higher education – here examples of the most profitable subjects.    The traffic source can influence also cost a click. The natural traffic (what goes from search engines) costs more because such visitors are considered target as they searched on a relevant subject, and usually they click announcements more often. The traffic from social networks, is usually paid low as such visitors simply ignore advertisements.