Please update your privacy settings
Still interested in Facebook?
If so, remember that the privacy settings are in the process of being changed, with the default settings being much more public than before.
It would have been nice if they'd opted to leave things as they are by default and let people open things up gradually but it isn't too hard to change from their suggested 'public' settings to what you had before (10 clicks to be precise). How many people actually do it remains to be seen of course.
I know it's fashionable to paint Facebook as the bad guys but I actually think they try quite hard to make it clear who can see what.