Baby photos on Facebook: To post or not to post?

A first photo of a new mom and baby. A toddler paddling in the water at the beach. Post these scenes on Facebook, and you’re sure to set off a storm of “Likes” and messages from friends and relatives.

But think twice before hitting the share button, says a team of researchers at New York University. In a study presented at a conference in May, they show how Facebook posts could supplement public information to deliver a revealing portrait of not just the parents but also the kids — years before they’re old enough to use the social network themselves.

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