Alan Kay, of Palo Alto Reserch Center, and Apple Computer, once did a lecture on "Predicting the Future, by Inventing it." In it, he pointed out that no one had any use for the photocopier until it was invented. The typical response was that "nobody would want it--we're on our way to the paperless office." (Signed, Xerox--really!) Yet, once it proliferated, so did the photocopied paperwork.
What does this have to do with Google? They're way ahead of the game in imagining a society without anonymity. Sadly, it appears, they're going to blaze the trail of "inventing it," too. It's hard to tell if anyone will eventually embrace it (could work, in a stateless society) but it seems inevitable. For now, I keep private what makes sense, and what I can, to the extent that I can.*
* Within reason...for example, I do occasionally search by google, but do sensitive searches elsewhere. I don't usually bother with proxies, but I'm not on facebook (and especially with my real name and bio), etc.