Fun photos become spy photos?

I've been paring down all my photo archives to prepare them for display on the web when I noticed something: the resolution on my camera is now good enough that you can read the fine print in the picture! All of this got me to thinking that even the most casual photos can now reveal a lot more information to the viewer than was intended. Each of us has to be a little more careful about how we post all our personal data because it gets recorded forever in large archives.