This is really nothing new. It's just a little easier now, but your personal information hasn't really been personal for years. Even before proliferation of the internet you could go to the local library and and lookup anyone's address in a reverse phone book. And once you have the address it's a simple matter to look it up on a map. This Google thing actually scares me less, because someone willing to go to all the trouble of going to the library and look me up probably wouldn't be too lazy to actually drive to my house. The same can't be said for someone idly clicking on google and mapquest.
