The release of the Panda Google algorithm update back in February of 2011 had dramatic impacts on a large number of websites. The purpose of the update was to change how links, website content, and general Google SEO updates were perceived by the search engine.
The biggest impact of a Google algorithm update is a drop in Google page rank. The page rank is how a site ranks for a search result. Search engines, such as Google, are moving to results that are oriented towards organic search results. If a website is not properly optimized for the Google SEO updates, then it will not appear near the top of a search engine result page.
Google page rank is important for a business that needs to generate leads and customers. If a website is not up-to-date with the SEO requirements of Google, then it will be negatively impacted by the present and future Google algorithm update changes. The Panda 3.6 update that was released back in April of 2012 saw a shift in the ranking results of various websites. One main focus of the update was the importance that was put on web page content and linking.