martinacastro - 7:29 pm on Feb 22, 2011 (gmt 0)
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Anyone notice anything dramatic changing on Feb 15 (last Tuesday)?
One of my sites drop 170 positions for 2 very competitive keywords (K1, K2) on Feb 16 and stay in the same position (for other keywords composed by K1 or K2) or drop 5 or 8 positions for some other different keywords and the traffic decrease ~25%.
Since sunday this site improve their rankings in ~70 positions for these Kws (K1,K2).