AdSense Randomly Testing Ads On Publishers’ Sites?

I have seen two conversations about random uncoded AdSense ads appearing on people’s sites. Webmaster World is discussing new ads that appear to be adding a “more ads link” and some random text link ads to people’s AdSense ads.

A thread here at SEW has found ads being randomly added to a travel blog.

I hope to find out from Google what is happening…. will ask tonight or tomorrow when I am at SES San Jose.

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