Facebook's claim to fame is its power to "connect you with the people around you."
But with nearly a billion users, experts say those connections are causing a growing number of marital separations.
Attorney Keith Dennen, a social media specialist, said these days, Facebook has nearly replaced the need for costly private investigators in divorce proceedings.
"Now, all we got to do is sit at our desk and find out all the things that you are doing," he said.
New studies estimate more than a third of all divorce filings last year contained the word "Facebook."
And more than 80 percent of U.S. divorce attorneys say they've seen a rise in the number of cases involving social networking.
"If you are a spouse who has been wronged or you suspect something is going on, this is a great way to find out if it is," attorney Elizabeth Garrett said.
"What they are putting out there to see, that may sway a judge's opinion when they are considering the best interests of the children," she added.
Meanwhile, Facebook may soon be available to younger users. But, not everyone is a fan.
"I know a woman who has 8-year-old twins," concerned mother Angela Stacey said. "Both of her children have Facebook, and they both posted inappropriate photos. And they're girls. At 8 years old."
Facebook's policy currently only allows those ages 13 and up to sign up for an account, although some kids are finding ways to sign up anyway.
Now, the social networking giant is looking to legally expand its audience to younger children by giving parents control of the accounts.
"There needs to be a lot of supervision and that is just not possible in this day and age," child psychiatrist Dr. Laura Davies said.
"If this kid is online and makes some inappropriate connections, it can lead to long-term dangers that really harm [him or her] the rest of their lives," she explained.
With Facebook's continued growth, it's important that both parents -- and couples -- be vigilant.