When we talk about optimization, we often encourage you to use the ad format Medium Rectangle 300 x 250. But we also mention that the greater ad units typically offer better performance. Consequently, some publishers have asked the following question: “What format should we use, medium rectangle 300 x 250 or large rectangle 336 x 280?”
We have forwarded this issue, for which we detailed the benefits of each ad format:
- The medium rectangle 300 x 250 is a format widely supported. Advertisers often use when designing campaigns to promote their brand, or Rich Media campaigns. The choice of this format and joint use of text ads and image ads can generate more opportunities for targeting sites, thereby increasing competition for your ad space and thereby increase your income over time.
- The large rectangle 336 x 280 tends to generate a clickthrough rate higher because of its greater size. Its performances are often very satisfactory when it is integrated into the content of pages with lots of text.
We have found that optimizing the performance of these two ad formats can vary from one site to another. Therefore, we can not advise on all publishers to favor one format over another. As with all other customization options, we recommend that you test each ad format for 3 to 4 weeks, and measure performance using custom channels.
Tags: Adsense Optimization, Adsense Tips, Advertising, Google, Google Adsense, Tips and Tricks



Using large rectangle for the moment. Will try the medium one to see the result.
i am really very thankful that Google launched the Adsense program. this enables most of us who owns several websites to work at home.
you can easily earn lots of dollars from adsense if you have a high traffic site.:,~