In order to increase the amount of money you make from your webpage, you can do three things, increase the amount of money your ads pay, Referenced here in Best Keywords List, increase the number of visitors to your site, or increase the percentage of visitors who click on your ads. This pages will focus on maximizing the number of people who click on your ads, the Click Through Rate.

Many webmasters complain that their ads do not get very many clicks and that they don't make money from them. Well one of their problems is poor ad placement. They put the ads in unobtrusive spots, so that it doesn't ugly up their page. And there is nothing wrong with that, unless you want to maximize your income. You have to decide why you are putting the time in to make a website. Are you doing it for fun? Are you doing it for experience? Then you probably should hide your ads and make the site as esthetic as possible? Are you doing it for money? Then brings the ads out.

A good place to start on where to place your ads is to look at the Google heat map.

Heat Map

In this heat map, dark orange represents the best places to place your ads, lighter colors are not as good. All things being equal, ads 'Above the Fold' tend to do better than ads 'Below the Fold.' Additionally ads that are near content rich area or the navigational sections of a page tend to do well because your visitors are focused on those area.

However, for some types of pages other ad positions also do well. Think about the type of page you are placing the ad on. Is it an article page? If so, then ads directly below the article are also suggested. The reason for this is that the visitor will often read the entire article and then wonder where to go next. Well targeted ads at the bottom will entice them to continue on.

Besides ad position, what else can you do to increase your click through rate? That topic is covered more in depth in Ad Color Strategy