Illinois Reference Materials
- Illinois Genealogy (FamilySearch Research Wiki)
- Illinois Research Outline (2005)
- Illinois Historical Background (2001)
- Illinois Statewide Indexes and Collections (2001)
- Illinois Federal Census Population Schedules, 1810 to 1920 (2001)
- Maps Computer Resources
- U.S. State Censuses Illinois
- Selected List of Illinois Record Sources
- Illinois References (2004)
- Illinois Maps Bibliography
- County Histories on Microfilm
- Bibliography of Maps, Atlases, Gazetteers and other Finding Aids
- Other Resources Illinois