Adsense is a contextual advertising program run by Google. This involves three parts:Advertiser,Publisher and Google.

Google, in this case, acts as an advertising agency. Google collects advertisement from many Advertisers through Google adwords program. Google then displaying the advertisement in any of Google and Publisher web pages.

Publisher here refers to any website-owner who give some of his advertising space to display advertisement provided by Google. It could be a person or a company. Shortly, any website-owner who display google ads on his website is called as Adsense Publisher. In fact, many of well-known website owner has been involved in google Adsense program. We can name some of them: Friendster and DynamicDriveGoogle utilizes its search technology to serve ads based on website content, the user’s geographical location, and other factors. This give benefits to both publishers and advertisers. Advertisers get a guarantee that their ads will be shown in the right places and to the right viewers. They may then hoping a high quality visitor generated from their ads.

In publishers side, the benefit would be a more possibility that the ads appear on their page will be clicked by their visitor. since Google Adsense giving revenue sharing to Adsense publisher mostly based on ‘per-click basis’, having more ads clicked
means more revenue.