It appears Google has updated it’s toolbars once again today (didn’t they just do that about a month ago?).  I am pleasantly surprised by the update, even though we all know by this point that pagerank is only one factor in determining the quality and importance of a site.

I’m guessing the update is still in process however - I have one older site that went from a pagerank 4 to a 5, while a newer one with very few links went from a 0 (it’s a private membership site, with no attempts to get incoming links) to a 5 as well (!).  I’d be very surprised if this was the end of the update.