Google Updated Penguin 2.0 Web spam Algorithm 2013

Matt Cutts said we started rolling out the next generation of the Penguin web spam algorithm on 22 May 2013 and the roll out is now complete. That update affects 2.3% of English-US a regular user might notice. The change has also finished rolling out for other languages world-wide. The scope of Penguin varies by language, e.g. languages with more web spam will see more impact.