What Is Google AdSense? — Wiki
Google AdSense is a free and simple tool for publishers of any and all sizes to make money by showing targeted Google advertising on their websites.. Google AdSense is easy to use, and the ads are very well-targeted.
Part 1 — Tips to avoid Google AdSense Limit
Why does Google AdSense limit Ad serving on your account and here are the Part-1 tips for avoiding AdSense limit. Avoiding Google AdSense Limit Tips