So what is this Google Adsense? What it has that makes Internet marketers and online entrepreneurs prefer such business? These and other questions that may pop-up in your mind will be answered as you read the rest of this article. It is an advertising program that is run by Google. It is designed to generate advertising revenues for your site. You can register in this program by allowing text and image advertisement. These advertisements are managed by Google itself, and you are paid on either a per-click or per-thousand-ads-displayed basis. Google makes use or its search engine optimization (SEO) technology to serve advertisement based on website content, your geographical location, and other factors. For instance, your site is all about pet medicines. You will allow Google to place ads in your site with relation to pet supplies.