Penguin, an integral part of Google’s overall search algorithm, looks for websites that are considered spam, but still manage to rank well in search results. It also focuses on sites that have purchased paid links. If your site has been deemed spam by Penguin you will not be able to recover until you have removed the elements that Penguin doesn’t like. The new Penguin updates will be a part of Hummingbird; Google’s ranking engine.
For more information on Penguin 2.1, or too see how this may affect you, click here.