Wikipedia: Prison Gang
- Article defines Security Threat Groups and describes the larger United States gangs.
- http://en.wikipedia.org/wiki/Prison_gang

Inmate and Prison Gang Leadership
- 2003 doctoral dissertation on the types of individuals who rise to lead prison gangs.
- http://etd-submit.etsu.edu/etd/theses/available/etd-1103103-220112/unrestricted/FortuneS112503f.pdf

The Problem of Gangs in American Prisons Today
- Detailed findings from the 2004 Prison Gang Survey.
- http://www.ngcrc.com/corr2006.html

Public Safety: Security Threat Group Information
- Massachusetts Department of Corrections' primer on prison gangs. Site includes writeups on gangs noted within state institutions, with additional information and images for the top three groups: Latin Kings, La Familia and Neta.
- http://www.mass.gov/?pageID=eopssubtopic&L=4&L0=Home&L1=Law+Enforcement+%26+Criminal+Justice&L2=Prisons&L3=Security+Threat+Group+Information&sid=Eeops

Pelican Bay State Prison Photo Essay
- Collection of photos relating to prison gangs at California's super-maximum security institution.
- http://www.sfbappa.org/Awards/picturestory/picstory28.ex2.html

Inside Pelican Bay
- Activities of prison gangsters within an infamous California penal institution. Explores methods used by incarcerated gang leaders to influence events beyond the prison walls.
- http://www.mapinc.org/drugnews/v01/n707/a04.html

Arizona Security Threat Groups
- Arizona Department of Corrections' information on prison gangs in that state. Site includes samples of gang tattoos, artwork and literature.
- http://www.adc.state.az.us/STG/STGMenu.htm

Gangs and Prison Misconduct
- Federal Bureau of Prisons 2001 report on the influence of prison gang affiliation on violence and other prison misconduct. Statistical analysis with tables and charts.
- http://www.bop.gov/news/research_projects/published_reports/cond_envir/oreprcrim_2br.pdf

My Life in Prison Gangs
- Autobiographical essay by a prison gangster who found religion.
- http://nowwhat.cog7.org/Articles/BreakTheLaw/MyLife.html

Texas Prison Gangs
- A study of the eleven Security Threat Groups identified by the Texas Department of Criminal Justice.
- http://davadnai.users.omniglobal.net/gang.html

Gangs Or Us: Prison Gangs
- Gang expert Robert Walker provides background information on major and minor criminal organizations and links to other sources.
- http://www.gangsorus.com/prisongangs.html

Prison Gangs - Gang and Security Threat Group Awareness
- Florida Department of Corrections information on major gangs: Neta, Aryan Brotherhood, Black Guerilla Family, Mexican Mafia, La Nuestra Familia, Texas Syndicate. Site includes descriptions of gang origins, identifiers, characteristics and rivals.
- http://www.dc.state.fl.us/pub/gangs/prison.html

NPR : Gangs Reach Out of Prison to Commit Crimes
- Report on organized criminal groups within California's prison system and the ability of those groups to project power outside of prison walls.
- http://www.npr.org/templates/story/story.php?storyId=4525733