No harm done!
. Well, what I do is use Google as little as possible. Of course, the others do similar things, but no other company is as thorough and going as far as they are -- that is how I see it. The reason they are so successful.
Well, not much of me is on the web yet, I googled myself and only found a small article in the NY times, of all things. So you can still have some privacy, after all we are all semi anonymous on forums, etc. IP addresses do not define us yet, fortunately.