One of the ways you can increase your Adsense revenues for sites that have poor CTRs is to only show ads to search engine traffic visitors. As promised to some of you guys earlier who don't want to put too many ads, I devised up some free javascript code that will detect your visitors and only show ads to search engine traffic. For example, if you came to my site through Google or Yahoo then my ads will show, otherwise they will collapse into nothing. This is actually almost identical to Chitika ads, except you can do it with Adsense. Anyways, you can also use it to not annoy your regular readers on your website, sorta "ninja" ads that show only to search engine traffic. Besides that, search engine traffic visitors are the ones who read the ads and click the ads the most so, this will skyrocket your CTR. Lower CTR and high web traffic can mean CPC saturation for your overall Adsense revenue, meaning lower revenue. If you use this code for that kind of sites, it will certainly help your overall Adsense revenue from saturation while you make the most out of your valuable search engine traffic and raise CTR. Here's the HOWTO: http://zedomax.biz/blog/make-money-...ic-and-less-annoying-to-your-regular-readers/ Enjoy~ P.S. I think this has everything to do with placement since you can control where your ads appears.