I believe most of internet user by now knows about adsense, spesialy the webmasters ofcourse. There are 2 main categories of webmasters related to adsense. First the ones that make lots of money from their website using adsense and second are those who making nothing or barely making enough to get their check every month.
The good thing is that Adsense is working even at those small sites. There are plenty of tips around the Internet that advise you how to place the ads or how to make the look and feel of your pages, to get more revenue. But the real problem for every webmaster that owns a small or a hobby site, is the TRAFFIC. The magic word for success. So how you will drive lots of traffic to your site? The answer is simple register to as many search engines and directories you can and make fresh and keyword rich UNIQUE CONTENT. Do not pay anyone to promote your site even adwords sometimes can cost you your adsense makings or more. Good luck to all.