County Genealogy
- Part of the INGenWeb project. Extensive resources and links for local researchers.
- http://www.rootsweb.com/~inmontgo/

North Montgomery Community School Corporation
- Serving a largely rural six-township area. Administration and district information, calendar, individual school pages.
- http://www.nm.k12.in.us/

Montgomery County Economic Development Corporation
- Nonprofit dedicated to encouraging investment in the region. Local business and demographic information, available sites.
- http://www.mcedonline.com/

Montgomery County Historical Society
- Maintains the Henry S. Lane Home in Crawfordsville. Membership, tours, local black history.
- http://www.lane-mchs.org/

The Political Graveyard
- Information on the political history, cemeteries and memorial sites in the county.
- http://politicalgraveyard.com/geo/IN/MN.html