Its 'Good Time' to review your AdSense strategy!! Let's get ensure that you’re making from most out of your ads. Here is a detailed two-part optimization checklist series to take your AdSense strategy to the next level and increasing your earning potential.
http://adsense.blogspot.in/2013/01/your ... art-1.html
http://adsense.blogspot.in/2013/01/your ... art-2.html
Good Luck!