May 13
23
As I reported last night at Search Engine Land, Penguin 2.0 / 4 is now live – this is the next generation Penguin update. As Google’s Matt Cutts added, this impacts 2.3% of English queries and also impacts other languages but the percentage depends on the level of spam in those languages…
See more here:
Google Pushed Out The Major Penguin Update (v2.0 #4)