check cnn.com - towards the bottom, above where it says "From our partners," there a section titled "Education"; not only does it look like content but its an ad unit that has both an adlinks element and PPC ad text element; click on the links under the word education and the text ads change right on the page! i think that's kinda neat. and to boot, there's an image next to the ads, which i'm sure draws good attention to the ads. kinda clever i think - a interactive combination of adlinks, adsense and images all in one unit. hope this appears for regular publishers at some point.