I read somewhere (forgot where) on the DP forums that there was a way of raising the revenue paid per click on a site that had something to do with removing extra ad units. Right now I'm only getting a few cents per click. Does anyone remember what exactly this method involved for raising click revenue? Thanks.
Experiment, if you are using 3 ad blocks try taking one away and make sure your first ad block is a prominent or wide 300+ ad block and see how that works for you. Again - experiment with your site, it has it's rewards.