There are many webmasters and SEOs believing right now that Google has released an update to their Panda algorithm late yesterday.
We've reached out to Google to confirm or deny the Panda update, as we've done 24 times previously; but this time, Google told us they are unlikely to confirm future Panda updates since Panda will be incorporated into their indexing processes.
It would not be surprising if this was indeed a Panda update since Matt Cutts, Google's head of search spam, did say at SMX West that a Panda update will be rolling out this Friday through the weekend. Matt then said although an update is expected this weekend, don't be surprised if you don't notice it because the Panda updates are going to be more integrated and less noticeable in the future.
I am not sure if this last push was the last manually updated Panda refresh or if it is already fully integrated into the normal Google indexes process. I think this was Google's last manual push and they will, from now on, most likely not do manual pushes of the algorithm in the future.
The last Panda update we had confirmation on was Panda #24, so this one would be coined Panda version 25.
Read more... http://searchengineland.com/google-panda-update-25-seems-to-have-hit-151732