- Corrections
- National Institute of Corrections
- Australian Institute of Criminology
- The Radzinowicz Library
- The Scottish Centre for Crime and Justice Research
- The Centre for Crime and Justice Studies
- Prison Activist
- the Guardian Prisons
- the Observer: Special Reports
- World Directory of Criminological Resources
- Centre of Criminology Library
- Correctional Officer Training Headquarters
- Prison Policy Initiative
Justice Statistics
- National Prisoner Statistics (US)
- FBI: The Uniform Crime Reporting
- Statistics at Ministry of Justice (England and Wales)
- Prison Population Figures: 2013 (England and Wales)
- Prison Statistics 2011 – 2012(Scotland)
- Statistics (Ireland)
- Australian Bureau of Statistics
- Prisoners in Australia, 2013
- Facts and Statistics (New Zealand)
- Statistics Canada
- Adult Correctional Statistics in Canada, 2010/2011
- National Criminal Justice Reference Service
- Bureau of Justice Statistics
- National Archive of Criminal Justice Data
- Statistics about women in prison