Aaron Wall has a video on how to identity the top paying adsense keywords:

This is very useful if you are a blogger or publisher and are using AdSense to monetize, you know what keywords to include into your content. The Video is about 7 minutes long and it describes a way to  easily filter/organize the keywords list using Microsoft Excel, SEObook’s Keyword Tool, Ad Intelligence. The process he describes is very simple and should be done weekly to make sure that you can make the most money for your efforts.