- Pennsylvania Department of Corrections
In addition to containing information about corrections today, the DOC hosts an Inmate Locator to help find people who are currently incarcerated in Pennsylvania.
- Pennsylvania Prison Society
The Prison Society was one of the forces responsible for the founding of Eastern State Penitentiary in the 1800s. Their website also has many links to websites about incarceration today.
- Prison Maps
This website contains aerial views of prisons in the U.S.
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