Google has launched what we’re calling the most disruptive feature ever in it’s history! This is a new feature called Web History. Through Web History Google now records and stores the full text version of every website you visit and makes it available for viewing later. You must be logged into your Google account in order for this feature to work.
Google is now positioning itself to not only track link popularity, which it does now of course, but to also track "mind share". Don’t be surprised to see the new "mind share" formula superseding the authoritative link popularity formula in the future.
So what about all those paid links? We’ll they’ve declared war on this as well to weed out the folks who are gaming the system by buying cheap links.