Prison expansion, corrections industry and ALEC

Bureau of Justice Statistics, U.S. Department of Justice
Bureau of Justice Statistics prisons page
Mother Jones prison report, including state-by-state statistics on inmate populations, prison spending, and more.
The Sentencing Project
American Correctional Association
Correctional News:
Stop the ACA
Prison Moratorium Project
Critical Resistance
American Legislative Exchange Council
Corrections Corporation of America
Wackenhut Corrections
Turner Construction
National Institute on Money in State Politics

Asset Forfeiture and the Drug War
Federal Asset Forfeiture Program
Bureau of Justice Statistics Crime and Drugs fact sheet
Forfeiture Endangers American Rights
White House Office of National Drug Control
Drug Policy Alliance
Common Sense for Drug Policy

California Prison Guards and Three Strikes
California Correctional Peace Officers Association
Families to Amend California's Three Strikes Law
Center on Juvenile and Criminal Justice - Report on CCPOA
Sentencing Project report on the impact of California's Three Strikes law