How to Recover From Google Penguin 2.1

Following hard on the heels of Google’s Hummingbird update, Penguin 2.1 is a smaller algorithm change that may have a much greater impact on online businesses. The fifth-generation of Penguin, introduced on Oct. 4, affected an estimated 1 percent of search queries and left many members of the SEO community picking up their pieces. Though not as large as Penguin 1.0 or 2.0 in scope, Penguin 2.1 has proven to be especially virulent in its targeting of new link-building methods ...

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