The seventh veil?

We're spending more than half as much time again on the internet as we did three years ago, it would seem, and the majority of that extra time is spent on social network sites. I've had my say about Facebook in particular and social networking in general, and I won't go over it all again. In any event I accept that I'm the one out of step here. I do wonder though if people at some point in the future are going to regret laying their life bare to all and sundry. Socialising through the internet differs from face to face contact not just in the number of people you are in effect talking to, but also because what you say or show is potentially there for all time, and I understand is very difficult to remove. I suppose you could say the same about this (or any other) blog, but I'm always careful not to post anything which I am not prepared for anyone to see now or in the future. There are limits as to how much of myself I am prepared to reveal - I wish I could say the same for my grandchildren. It worries me.