The big question is, ‘What is social networking and how is it useful?’
Of course you will hear the usual bleating saying, ‘It is so nice to know what my sister is doing….blah, blah.’
So ask this person, ‘Why can’t you send your sister an email asking what she is doing and she can respond to you. Or even better, if you can, call your sister and talk to her.’ But no, I must talk to my sister in a space where it is not only the sister who is listening but almost anyone who cares to listen, even if that person is a total stranger. So is it about your concern for your sister or is it something else?