I know this would affect CTR a LOT, since every time I change the colours of my ads my CTR goes through the virtual roof. Is there an easy way to randomize the colours of my adsense text without editing the code of the blocks? I use Wordpress, so is there a plugin for it? Edit: Found: http://tlog.dehumanizer.com/2006/02/07/adsense-tip-randomizing-ads/