Police Magazine: America's Most Dangerous Gang
- Article by Shelly Feuer Domash about the growth and criminal activities of Mara Salvatrucha 13.
- http://www.policemag.com/Articles/2005/02/America-s-Most-Dangerous-Gang.aspx

Wikipedia: Mara Salvatrucha
- Article describes the history, identifiers, rituals and activities of the gang also known as MS-13. Discusses the effect of U.S. deportation policy on the spread of the gang.
- http://en.wikipedia.org/wiki/Mara_Salvatrucha

Mara Salvatrucha - A South American Import
- National Alliance of Gang Investigators' Associations report written in 2000 by Al Valdez of the Orange County [California] District Attorney's Office.
- http://www.nagia.org/Gang%20Articles/Mara%20Salvatrucha.htm

Altered Dimensions: MS-13 Gang
- Essay traces the growth of the Mara Salvatrucha 13 street gang and its ties to El Salvador. Gang tattoos and graffiti are considered along with the organization's criminal activities.
- http://www.altereddimensions.net/crime/MS13Gang.htm

NPR : The International Reach of the Mara Salvatrucha
- Reporter Mandalit del Barco profiles the rise of the street gang Mara Salvatrucha from its roots in Los Angeles through its spread in Central America.
- http://www.npr.org/templates/story/story.php?storyId=4539688