And what about 50 year old married people who put their spouses and buddies on Facebook to make themselves look like good people (like Beckstead or Dunetz!) and then prey on vulnerable people on loads of other sites... all the while pointing to their Facebook saying "see, you can trust me!" - EOPC
Social networking sites are causing an outbreak of jealousy among partners of online fans that researchers have dubbed "Facebook rage".
Suspicious lovers find it so easy to trawl profiles for photos or messages that may show their partner is a cheat (or misinterpret things on Facebook) that they become obsessed.
And the more time they spent with their online surveillance, the more jealous they feel, according to the study by the University of Guelph in Ontario, Canada.
Psychologist Dr Brenda Wiederhold said: "This new forum might be impacting the dynamics of adult relationships."