As we predicted a couple of weeks ago – it seems that Google is now doing a PageRank Update. As with the back link update a week or two back this will take a few days (a week or more some suggest) to settle down. Google have chosen to do these updates over the Christmas break which of course is good for some as its traditionally a quiet period – however it makes it difficult to discern how their new results are impacting your blog.
Good luck all!
