What is google panda?

Google Panda is the latest Google algorithm in the process ofimproving the search system and anti-spams to give Internet users the best search results and most effective.
Google Panda attacked the U.S. and across Europe in the period between 2011 (from April to August
2011). However on the website SEO.com showed that Google has joined modifytheir algorithms many times silently. The following tabledescribes all of the above:

Where I can find Googles official post about this new algorithm ?

Does Google Panda update now live?
Google said its now live for all English Language Google users.
I’m a webmaster and how this affects me?
Again if you are Content Farmer ( If you do Copy=>Paste most of the time ) beware your site may soon loss traffic like hell.

Google+ Followers