Google AdSense is a program run by Google through which website publishers in the Google Network of content sites serve text, images, video, or interactive media advertisements that are targeted to the site content and audience. These advertisements are administered, sorted, and maintained by Google.
Make sure you use GWT with an inquisitive mindset. Most of the reports have limits, caveats, and nuances. Before you go rushing off to make a major decision, make sure the data is what you think it is and means what you think it means. Often, GWT data leads to important but unconfirmed hypotheses that you need to investigate.
Google AdSense is a popular way for websites to make money from advertisements, all the way from part-time bloggers to some of the largest publishers on the web. AdWords advertisers pay Google either by the click (PPC) or impression (CPM). In turn, Google shares a percentage of that revenue with the publishers.
Google AdSense serves ads via plain text, as opposed to graphical content that dominated the advertising scene when it was introduced in 2003. Google decided to serve plain text in an effort to minimize the intrusiveness of advertisements, to optimize the page loading speeds, and ultimately, to elicit a more favorable marketing response from the site visitor.
Google AdSense provides a way for website owners to earn money from their online content. AdSense works by matching text and display ads to your site based on your content and visitors. The ads are created and paid for by advertisers who want to promote their products.
Google AdSense By Gulshan Marwah