High Perfoming Google AdSense Units
As a rule of thumb, wider ad sizes tend to outperform their taller counterparts, due to their reader-friendly format. Readers absorb information in “thought units,” several words at a time. Wider sizes let them comfortably read more text at a glance without having to skip a line and return to the left margin every few words, as they’d have to with a narrower ad.
If positioned well, wide ad sizes can increase your earnings significantly. The sizes Goolge have found to be the most effective are the 336×280 Large Rectangle, the 300×250 Medium Rectangle, and the 160×600 Wide Skyscraper. Keep in mind that while these ad sizes typically perform well, you should use the size that best complements your pages.
Tip for making the most of a little ad space: Try one of our streamlined link units, shown below. These sizes are versatile enough to fit in locations normal ads don’t.
Learn more about how you can upgrade to high-performing ad units in the video below.
To learn more about Increasing your AdSense earnings, please read through our previous posts or through the related posts listed further below. You should also subscribe with your email address, RSS, follow me on Twitter, become my friend on Facebook, become my friend on Linkedin and become my fan at www.facebook.com/jadesojiadegbulu so as to get more posts about delivered to you as soon as they are made available here.
Source – https://www.google.com/adsense/support/as/bin/answer.py?hl=en&answer=17955&sourceid=aso&subid=ww-en-et-asblog_2011-10-03&medium=