Optimizing adsense positions has really worked wonders for binaryday, pushing the eCPM to more than 10$. Primarily, I used optimization tips provided by Google. Here are some of the important adsense optimization tips that have worked for me. However do not just read these tips. Loginto your adsense account and start making the changes. All these changes can be effected in less than 15 minutes and you shall be surprised by the result.
The first adunit shows the ads with the highest revenue per click ads. Make sure that it is the ad unit with the highest Clcik-Through-Rate as well. Use of CSS can make it difficult to know what is the first ad unit. Visit the page from your browser and do a view source. Scroll down the html code. The first block of adsense that you see is your first ad unit. Use custom channels to check that it is the one with the highest CTR.
Do you still use wordpress built in search box on your blog. Stop throwing away serious money and start usings an adsense for search box.
Site targetted ads increase the competition for your advertisement place and there by increase your earnings. Modify the default message to convert more advertisers into site-targetted advertisers for your site.
The corner of the ad uniit makes a difference. Increase your earnings by using rounded corners for your ad units.
Place your adsense unit below the header of your posts and directly below the border. Removing the border between content and adsense unit can result in an increase in CTR of as much as 300%. Binaryday uses this trick to the letter
Match your ads to the content
In May 2005 google published the secret to dogbreedinfo doubling its income to more than $650 a day. The simple tip that doubled the earning was use unobtrusive advertisements. It is not like for nothing that all adsense Guru suggest this as the first tip.
Way back in January 2006, Google published this simple but effective optimization tip for blogs. To get the best results from adsense, you should choose the right ad format for your blog and then place it at a place, where people will see it. Also make sure to use section targetting to get ads targetted to the specific post.