Google SEO Penguin Update

                                                All Google SEO Penguin Updates

1.Penguin 1.0 on April 24, 2012 (impacting ~3.1% of queries)
2.Penguin 1.1 on May 26, 2012 (impacting less than 0.1%)
3.Penguin 1.2 on October 5, 2012 (impacting ~0.3% of queries)
4.Penguin 2.0 on May 22, 2013 (impacting 2.3% of queries)
5.Penguin 2.1 on Oct. 4, 2013 (impacting around 1% of queries)
6.Penguin 3.0 on October 17, 2014 (impacting around 1% of queries)
7.Penguin 3.1 on November 27, 2014 (confirmed by Google, no impact given, Google considers part of Penguin 3.0)
8.Penguin 3.2 on December 2, 2014 (not confirmed by Google but based on publisher reports)
9.Penguin 3.3 on December 5, 2014 (not confirmed by Google but based on publisher reports)

10.Penguin 3.4 on December 6, 2014 (not confirmed by Google but based on publisher reports)