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jmccormac - 12:47 pm on Jan 23, 2012 (gmt 0)
And the Google Adsense heatmap suggests that the upper left of the page is a good place to put adverts. All this contradictary advice from Google would lead one to think that these guys can't walk and chew gum at the same time. I don't know how much Matt Cutts was involved in developing this algo, but in the past when Panda rolled out, he seemed to object to Suite101.com, which at the time had ads on the left side (where most sites have nav menus).
Regards...jmcc