@kchang. Very good point about Linked In. It used to be a more serious option than Facebook and is used by many genuine professionals of excellent standing. However the "network marketers" and scammers in general have moved in in a big way. Out of every 10 invites to join someone's profile group that I receive, three quarters of them seem to be people involved in dodgy schemes these days. Pity because as Linked In was for adults and FB was started for youngsters, Linked In had a credibility that FB never had.