SEO With Google Panda and Penguin
Website owners dependent on traffic via Google understand that a sudden loss in traffic may mean a sudden drop in income. During 2011 and 2012 this was the case as Google changed their search algorithm with the Panda and Penguin updates.

The over-arching goal of Google's search algorithm updates is to return higher quality sites to users. Yet, it seems as though Panda and Penguin have been unfairly blamed for the traffic loss that many websites have experienced.

Remember the old saying about blame: when pointing a finger, three are pointing back. Sure Google is setting its "rules" for who gets to play in its top-search-results playground, but the only thing that website publishers, bloggers, and writers can do is examine and change their own body of internet work.