I know how important the placement of your ads are to your CTR. After carefully doing a run thru of my site, asking a friend as a test subject to use it whilst i observe, I realised the weakness of some of my placements, and after some restructing, change of colours, my site's CTR jumped by maybe another 50%. This was last month . However, this march has been poor, daily earnings have dropped . According to google analytics, my site has an 75% return visitor rate. Since most of the users are used to the current ad placements, Do you think its time to evaluate my placements again and change ?
Change is good sometims.... Just make sure and don't change too much. Only change the placement of one of the ads to see if that helps. Sometimes people go too far and re-construct their entire site. Your time should be spend advertising and not worrying about ad placement.