Well, some of those social networking sites, when you join, their software goes through your e-mail program and sends invitations in your name to everyone in your address book - just like a virus does! I don't know if Facebook does it that way, but I wouldn't be surprised, since I'm constantly getting invites from there. I've trained my e-mail program to recognize anything from Facebook and all of those other sites as spam, and to delete it at the server level without downloading it, but I see the invites when I check my e-mail on my service's web mail page.
It seems that hardly a week goes by when there isn't something in the news about some new privacy or security issue at one of those sites, and it seems that Facebook is the one most often mentioned.
I read an article last week about how many employers, when interviewing prospective new hires, demand the applicant's Facebook user name AND Password, so they can not only check out your public information, but also access your private stuff.
I guess I'm another dinosaur. I have no account on Facebook or any other social networking site, no Twitter, no cell phone, none of that stuff. And I don't miss it. I can think of exactly twice in my life when it would've been handy to have a cell phone, and never when I've thought it would be handy to have any of that other stuff.
Aside from the privacy and security issues, the thing I wonder about is how people have time for that stuff. If I had accounts on any of those sites, I wouldn't have any time to use them. And I'm retired! How do people who work do that stuff? Do they do it all at work, on their emploter's time? Or do they come home from work, get on the computer, and not get off of it until they go to bed?
Amen, Mick! And yes, it is a constant thing with those under 50 or so. Look about as you go to a mall or some other place with lots of young people and the iphone android whatever is always up to their ear and their mouths are going a mile a minute. They are also utterly unaware of their surroundings, so it's up to you to avoid collisions. I like to play "chicken" with them occasionally, except in chicken, both parties are aware of what's going on.
Alas, I was born too late. Back to steam locomotives and the telegram! And DC-3's, 4's and 6's and Connies. And rare steaks and smokes, too, while I'm at it.