Alpha Legal Directory - http://www.alphalegal.com
The Alpha Legal Directory is a directory of Attorneys and legal resources.  All searches are free.

Self Help Legal Clinic and Law Library - http://freedomlaw.com
Self help legal clinic and law library online

Bureau of Justice Statistics - https://ojp.gov/
Justice related statistics

Corrections Links - http://www.corrections.com/links
Links to helpful corrections sites

Prisonpro - www.prisonpro.com
Prison and jail related information for each facility by state; has examples of visiting applications

State specific laws - http://statelaws.findlaw.com/
State specific laws by state and topic