This theme issue of a bulletin on family support and children's mental health focuses on managed care and the impact on children who are in need of mental health services. Articles include: "Private Sector Managed Care and Children's Mental Health" (Ira S. Lourie and others); "Just What Is Managed Care?" (Chris Koyanagi); "Managed Behavioral Health Care and Family Involvement: The Arizona Experience" (Teri Sanders); "Georgia Family Organization Plays Key Role in Delivery of Children's Mental Health Services" (Sue Smith); "Montana's Managed Care Gold Rush" (Barbara Sample); "Philadelphia County Develops Family-Friendly Behavioral Managed Care Plan" (Estelle B. Richman); "Consumer Involvement in Managed Care" (Bazelon Center for Mental Health Law); "Ending Discrimination in Health Insurance through Federal Law: A Children's Mental Health Perspective" (Michael M. Faenza); "Principles of Family Involvement in the Development and Operation of Managed Health and Mental Health Care Systems for Children and Youth" (Federation of Families for Children's Mental Health); "Operationalizing Cultural Competency in a Managed Care Environment" (Josie T. Romero); "A System in Transition: CASSP Principles Revisited" (Judy Robison); "Managed Care in Evolution: One Family's Experiences" (Teri Sanders); and "The Impact of Children's SSI Program Changes in Welfare Reform" (Bazelon Center for Mental Health Law). Managed health care resource materials are also listed. (CR)