If your Adsense is performing poorly, I have two tips for you: 1. Decrease the number of Adsense blocks that you are displaying on a page. I don't know how others have experienced this, but my income seemed to be less if I had more than one block of Adsense ads displayed at once and your CTR is definitely less if you have more than one ad impression at a time. 2. My suggestion would be to have one Adsense block in your content, and an Adlinks block somewhere at the top of your page. Adlinks is great because if someone clicks on a link in it, they are taken to a page with many more choices on it, which increases your chances of them clicking through.