Have a look at http://www.dolphinstreet.com/guitar_video_lessons/lesson-74.php or any of the pages in this section (navigation on the right). My CTR on the 336 x 280 ad is quite low. I also have a 120 x 600 unit, which pays out 3 times better, although CTR is slightly lower. It also comes first in the html code, so maybe that is why the payout is better. Maybe I should make it so the 336 x 280 unit comes first in the html code? Any suggestions on improvements? I'm thinking about scrapping one of the ad units and throw in a Chitika ad or something instead. I wish I could bring up the CTR a bit.
its good but if you could change your ad on the middle to a link ad horizontally and place it below tittle, and add a link ad on the top of that ad.