The Telegraph online has an interesting article on the tendency of people to let it all hang out on sites such as Facebook. This is not news, but what is interesting is that banks are having to change their identity verification practices because some "security questions" are no longer as secure or as secret as they used to be once your life is being lived online. See: Fears over Facebook identity fraud Uk News News Telegraph.
And a word of caution: don't put your birthdate and your address on your profile. Those two bits of data are often enough to pull your credit report and lead to unfortunate results. And if someone you're dealing with thinks your mother's maiden name leads to security, walk away.