What is Adsense?
Google AdSense is a service that places ads in the form of banners and textlinks on blogs and websites, therby generating advertising revenue from each page. This service provides relevant text and image ads that are precisely targeted to your site and your site content. Furthermore, the user chooses where the ads are located on the page, and the number of ads they are comfortable with. Adsense has an additional feature, that is a Google search box to your site, in which the user is paid for each time a visitor uses the function.
How adsense works.
Adsense generates profit in two ways: through page impressions, and the number of clicks on the ads. Page impressions work by every time a visitor loads the web page with the the advertisement, the host receives a profit. As such, page impressions are similar to television and print ads because the customer only has to see the advertisement, not purchase the product. And, the if the visitor clicks the add then the host receives an additional amount (more than what they would receive for impressions). However, the number of clicks an advertisement receives is always significantly less than the impressions it receives.