Today I have came across Matt cutts tweet in twitter, The tweet gave information about the latest Google Penguin update Roll out
Weather report: Penguin data refresh coming today. 0.3% of English queries noticeably affected. Details: goo.gl/AF5kt
— Matt Cutts (@mattcutts) October 5, 2012
If you have not heard of Google Penguin then Penguin is basically designed to fight web-spam and to promote sites producing awesome contents. Thereby encouraging webmasters to follow Google’s quality guidelines.
Here is one interesting infographic on Google Penguin