Penguin 4.0 has been released, and finally, it seems that the dust is starting to settle down.  Now that Penguin has found its place as a real-time part of Google’s real-time algorithm, there are some changes we are all going to have to get used to.  In this episode of Whiteboard Friday, Rand Fishkin explains Penguin’s past, present and future, as well as gives his analysis of the rollout so far.  He even gives us advice for going forward.