The Telegraph in the U.K. reports that one in five divorce petitions filed by Divorce-Online contain references to Facebook.

The divorce lawyers claim that social websites like Facebook fuel divorces because they tempt people to cheat on their spouses.  They cite inappropriate sexual chats or flirty emals and messages discovered by suspicious spouses.

JR Raphael at PC World sees it differently.  The problem is not Facebook he says.  The problem is cheating spouses.  Facebook is only the medium.