Children's Online Privacy Protection Act (COPPA) - Specifically protects the privacy of children by requesting parental consent for the collection or use of any personal information of the users.
Federal Trade Commission: COPPA - An official introduction to the 1998 legislation which requires the U.S. Federal Trade Commission (FTC) to issue and enforce rules concerning children's online privacy.
Kids' Privacy On The Net - Discusses the Child Online Protection Act, ways to protect, and educational ramifications.
Kidz Privacy - Designed to educate kids, parents, and businesses about the privacy rights of children online. From the U.S. Federal Trade Commission.