Google has announced that they will use your landing page as a way to judge your adsense quality score. They are going to judge the content and layout of your landing pages.

Google stated:

“Incorporating landing page assessment into the Quality Score will help us improve the overall advertising experience for users, advertisers and partners by increasing the quality of the sites we present in our ad results.”

To learn more visit their blog http://adwords.blogspot.com/2005/12/new-addition-to-quality-score.html

Post to Twitter