Parents become aware of such situations in various ways.
For example, Cyberangels.org has both victim and cyberstalker profiles in its Cyberstalking resource . The info goes directly into a database to which both the FBI and US Customs also have real-time access. That's still true, but now it also appears that no organization can take action more quickly, except for local police themselves - so, parents, it's a good idea to contact both in an emergency. Analysts will go into the functions, limitations, and advantages of different types of software. Both organizations have trained volunteers, some of whom have experienced child online-safety concerns and crises in their own lives.