Not so long ago, teenagers in trouble got grounded. They lost their evenings out, maybe the keys to the family car. But lately the art of family discipline has begun to reflect our digital age.

Now parents seize cellphones, shut down Facebook pages, pull the plug on PlayStation.

[...]

In a report this year that captured part of the trend, 62 percent of parents said they had taken away a cellphone as punishment, according to the Pew Internet & American Life Project.

Parents "know how important and vital it is to their teens' existence," says report co-author Amanda Lenhart. "They were getting them where it hurt."

Read More