Facebook cited in a third of UK divorces

Facebook is cited in a third of all 2011 UK divorce cases, a rise of 13% since 2009, according to a survey by Divorce-Online website.
33% of all behaviour petitions cite Facebook with inappropriate behaviour relating to the opposite sex as the most common complaint.
The top three reasons for listing Facebook in behaviour petitions include "inappropriate messages to members of the opposite sex", "separated spouses posting comments about each other", and "Facebook friends reporting spouse’s behaviour".
Twitter was only mentioned in 20 petitions out of the 5,000 surveyed, accounting for 0.4%.