That stereotypical image of the American teenager glued to the phone needs an update.

A new study from the Pew Research Center's Internet & American Life Project found that 37% of Internet users ages 12 to 17 participate in video chats using such applications as Skype, Googletalk or iChat -- and girls are more likely to engage in v-chats than boys.

"As more and more devices in our lives have video capabilities -- as laptops and computers come with built-in video cameras, and many smart phones have cameras that allow for video chatting, for taking videos -- teens are taking advantage of that," said Amanda Lenhart, senior research specialist with Pew Research Center.

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