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-- Google AdSense
---- CTR drops because Clicks shaved
webcentric - 3:43 pm on Sep 19, 2013 (gmt 0)Thread source:: http://www.webmasterworld.com/google_adsense/4610511.htm
The link above does provide some clarity but muddy waters persist because "useful" is a subjective term and Google continues to be the judge of that.
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