Your teen may spend all afternoon chatting with friends on the Internet. But that may not be so bad, according to a new study by the MacArthur Foundation.

On the surface, it often looks like kids are wasting precious hours just hanging out on Facebook, sending instant messages or teaming up with their friends on multiplayer video games. But according to the study, kids’ participation gives them crucial technological and literary skills. “They’re learning how to get along with others, how to manage a public identity, how to create a home page,” said the study’s lead researcher.

What’s more, fears about Internet predators are often overblown, the researchers found. Most teens are socializing with their friends from school, camp and sports, rather than strangers. And kids often are more motivated to learn by their online peers than their teachers or parents, delving deeply into topics of interest.

Most teenagers faced numerous parental restrictions on their Internet usage, the study found. But parents take note: Many kids found ways to get around those obstacles and still hang out with their friends electronically during the day.

A caveat: The study only describes how kids use the Internet and other new media, and does not systematically measure the effects of online usage. Researchers observed youngsters online for more than 5,000 hours and interviewed some 800 youngsters and their parents to learn about their online activities.

In another new look on the topic, Don Tapscott, author of the 1999 bestseller “Growing Up Digital,” also refutes the argument that using the Internet makes young people stupid, lazy, violent or narcissistic. In his latest book, “GrownUp Digital,” based on thousands of interviews, he says people ages 12 to 30 have actually gained new, and in many ways better, visual, information-processing and communications skills as a result of having been reared on digital media.

What’s your take on your kids’ online activities? Do you set rules and restrictions around their Internet usage? Do you think Internet use provides your kids with important skills, and thereby encourage their activity? Or would you rather them put down the keyboard and, say, go outside?