Google Panda
 

What is Google Panda ? What is its Work?

It is aimed to lower the rank of "low-quality sites" or "thin sites", and return higher-quality sites near the top of the search results. CNET reported a surge in the rankings of news websites and social networking sites, and a drop in rankings for sites containing large amounts of advertising.

Google panda is a refining process of google.com for search results. its affect to websites having bad quality or copy content on their webpages. Google penalize them to avoid bad experience of user.