Reserve Officer's Association - Department of Illinois
- List of officers, events calendar, newsletter, and information about programs.
- http://www.ilroa.org/

Illinois Trails: Military Databases
- Includes databases for state-related interests in the Revolutionary War, the War of 1812, Civil War, World War II, and the Korean War.
- http://genealogytrails.com/ill/military.htm

West Point Parents Club of Illinois
- Features events, schedule, alumni, cadets, and links in support of cadets at the United States Military Academy.
- http://www.west-point.org/parent/wppc-illinois/

USO of Illinois
- Provides morale, welfare and recreation-type services to uniformed military personnel. Area facts, details on locations of provided services.
- http://www.uso.org/Illinois/

INGMHS - Illinois National Guard and Militia Historical Society
- Organization focused on promoting and developing the heritage of the state's citizen-soldiers. Includes details of its projects, membership benefits, photo gallery, and its support to raises funds for operation of the Illinois State Military Museum at Cam
- http://www.ilng-history.org/

National Guard Association of Illinois
- Provides support of current and former Illinois National Guard members including news, and an events calendar.
- http://www.ngai.com/