Just posted: Information onn The Google Brand Update currently going on http://seopbreakingnews.blogspot.com/2009/10/google-brand-update-is-about-maximising.html
It was a n interesting read, in order to exist in the serps, one has to come up with really good content, not only the content but the page navigation and layout and whatever it takes to keep the visitor on the page.
Nice! They are getting more advanced in their science - it's good to see, too, as Google results have been pretty spam-filled lately.