Apr 13
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Posted by Marie Haynes This post was originally in YouMoz , and was promoted to the main blog because it provides great value and interest to our community. The author’s views are entirely his or her own and may not reflect the views of SEOmoz, Inc. Are you confused about the difference between Penguin and an Unnatural Links penalty?
See original here:
The Difference Between Penguin and an Unnatural Links Penalty (and some info on Panda too)