Matt Cutts, Google’s head of search spam, announced at SMX West today that their Panda algorithm will soon be more integrated into their overall continuous algorithm updates.

If you want to know more about this news go thorough on the following link:
http://searchengineland.com/google-panda-to-be-integrated-into-the-search-algorithm-panda-everflux-151528

Latest announcement is google changes in algorithm on Feb,2013.Some of the Keywords rank has changed due to this alogorithms changes,