Here are some of proven ways on how to increase your Adsense earnings.
Focus on one Adsense ad format
The the Large Rectangle (336X280) is a format that worked well for the majority . This type of ad has the tendency to result in higher click-through rates (CTR). Why select this format? Basically because these ads look like usual web links, and people click them, because theyâ€™re being used to click on links. They may or may not be aware of the fact that they are clicking on your Adsense but they DO click and that will be for your advantage.
Make a custom palette for your ads
Select a color that will go well with the backgroundcolor of your site. If itâ€™s a white background, test white as the color of your ad background and border. The idea behind modeling the colors is to make the Adsense look like it is part of the web pages.
Do not hide your ads
Remove any Adsense code from the bottom of your pages and put them at the top. Put them in the place where people can see them quickly. You will be amazed how the difference between Adsense locations can make when you see your earnings.
Link to relevant pages
If you think some pages are better off than the others, put your ads there and maintain and manage these pages.
Surround your ads with as many of your main page keywords, using as much H1, bold and italic tags as possible. Thus, the Adsense system will be able to better recognize the important keywords and insert relevant ads.
Try to automate the insertion of your Adsense code
into the webpages using SSI (or server side included).