Panda and Penguin Updates
This section has a chronological list of Penguin and Panda Updates, as verified by Google. The main goal for this is to have a quick, at a glance, reference for those seeking to diagnose issues.
We have also posted various articles, podcasts, videos and other resources we have on them from around the web. If you've lost Google traffic (and haven't gotten a manual action message in Webmaster Tools) this is a great place to start the diagnosis and recovery process