What They Know - Kids

Marketers are spying more on young Internet users than on their parents, building detailed profiles of their activities and interests. The Wall Street Journal’s What They Know series documents the new, cutting-edge uses of this Internet-tracking technology. The Journal analyzed the

[caption id="attachment_7328" align="alignleft" width="300"] Arisya looking at friend using notebook[/caption]

tracking files installed on people’s computers by 50 of the most popular U.S. websites for children and teenagers. The Journal also built an “exposure index” — to determine the degree to which each site exposes visitors to monitoring — by studying the tracking technologies they install and the privacy policies that guide their use.>

[caption id="attachment_7169" align="alignright" width="300"] Boy with his tablet[/caption]