Popular social networking site Facebook has reached an agreement with attorneys general in 49 states to work together to make the site safer for younger users, including efforts to stymie online predators. The agreement dictates that Facebook will make it more difficult for users to change their ages, and will issue a warning when an underage user is exchanging personal information with an adult.

""This agreement establishes that Facebook shares our concerns about creating a safe online environment for children and teens to network," said Washington state attorney general Rob McKenna. "Tools like age authentication technology can help protect children from sex predators who use the Internet to contact potential victims."

The deal is very similar to one reached between state AGs and MySpace, another popular social network.