I really can't stand it when Google try new things with adsense. I am seeing Black borders around some of my ads every now and again. First with the various fonts, now with this. So much for nicely integrated subtle ads - eck so ugly. I'm using the same ad code on the page and after refreshing about 1 in 20 have this black border. Anyone else seeing this on their ads?
What it comes down to is people blending too well. Blending so that they fit into the flow of your site is fine, but too many people assume "blend" means to "hide" or "camoflauge" the ad so the viewer doesn't realize it IS an ad. Doing that only hurts the advertiser in the short run, and the publisher in the _long_ run viz a viz smart pricing.
we all experiment with ad placement on our sites and it is only natural for google to do the same experiments as well