"With school out and more free time on their hands this summer, teens' and kids' online activity can increase -- so it's important to provide parents and their children with tips and tools to stay safe while they are online," said Jay Opperman, senior director of security and privacy for Comcast, in a statement.
Two versions of the challenge -- one for kids and one for teens -- cover everything from the basics of using the Internet to posting information on social networking sites. --Aaron Baar