Google’s Matt Cutts, head of search and spam announced on Twitter that they have released version 4.0 of the Google Panda algorithm.
Google’s Panda algorithm is update to prevent low quality websites with poor content and user experience.
Google Panda update is start from Feb 2011 and from still now it’s refreshing.
If we have to improve our web in Google search algorithm then we have to create quality unique content.
Page Content intent should be clear and it should not be thin.
If the content is only for search traffic that kind of content is penalized.
Those sites which are publish original, useful and interesting content are really rank well in SERP