Hello to everybody.
Recently Google has realeased a new update for Google Panda, the new version is now 3.9 The algorithm impacted the search result, according to Schwartz B. (2012) article, about 1%, which is quite significant.
What is Google Panda? It is a change to the Google’s search result ranking algorithm. These changes are needed to remove all of the garbage, spam websites. For example: when you enter a website, you see only advertisements. Doesn’t it annoy you that such bad quality websites appear in the top results?
Here is Google Algorithm Change History