It depends how critical it is to you. Very few people I know use it more than face to face, or msn/gmail/other digital contact to keep up with people. It's not

It depends how critical it is to you. Very few people I know use it more than face to face, or msn/gmail/other digital contact to keep up with people. It's not really an invasion of privacy if your information is shared to your friends based on your privacy settings, and never seen by the advertisers.