American Psychiatric Association page on the insanity defense

Center on Crime, Communities & Culture
The goal of the Center on Crime, Communities & Culture is to create a better understanding of and support for effective and humane responses to criminal behavior and victimization.

The National Criminal Justice Reference Service (NCJRS)
The National Criminal Justice Reference Service (NCJRS) is one of the most extensive sources of information on criminal and juvenile justice in the world, providing services to an international community of policymakers and professionals. NCJRS is a collection of clearinghouses supporting all bureaus of the U.S. Department of Justice, Office of Justice Programs: the National Institute of Justice, the Office of Juvenile Justice and Delinquency Prevention, the Bureau of Justice Statistics, the Bureau of Justice Assistance, the Office for Victims of Crime, and the OJP Program Offices. It also supports the Office of National Drug Control Policy.

http://www.ncianet.org/ncia/fall1999update.html
A joint project of the national Center on Institutions and Alternatives and the National Institute of Corrections, U.S. Department of Justice

Mental Health and Treatment of Inmates and Probationers
Requires the Adobe Acrobat Reader (available Here)

Mental Health in Corrections Consortium

National Mental Health Association

National Alliance for the Mentally Ill

U.S. Department of Justice, National Institute of Corrections

Treatment Advocacy Center