"Facebook is divorce lawyers' new best friend":

Forgot to de-friend your wife on Facebook while posting vacation shots of your mistress? Her divorce lawyer will be thrilled.

Oversharing on social networks has led to an overabundance of evidence in divorce cases. The American Academy of Matrimonial Lawyers says 81 percent of its members have used or faced evidence plucked from Facebook, MySpace, Twitter and other social networking sites, including YouTube and LinkedIn, over the last five years.

"Oh, I've had some fun ones," said Linda Lea Viken, president-elect of the 1,600-member group. "It's very, very common in my new cases."