Doesn't mean much. You should identify an industry then target a niche within the industry and get to work. Adsense may or may not be your best choice. How many of these high paying keywords are actually in niches with any real traffic? How many of these ever hit the Adsense Content Network? What happens when you get a click and Google Makes $50 but only pays you 5 cents? These lists are for people who don't really understand Adsense. And for those of you who still think these lists matter... get out there and go make Google Rich!