Purdue University Cooperative Extension Service
- Local office of the statewide agricultural and nutritional resource program. News, calendar and programs including 4-H and Extension Homemakers.
- http://www.ces.purdue.edu/posey/

County Genealogy
- Part of the INGenWeb project. Archives, queries, links and other resources.
- http://www.rootsweb.com/~inposey/

Posey Circuit Court
- Indiana's Eleventh Judicial Circuit, serving the county. Events, projects, news, information for attorneys.
- http://members.sigecom.net/pcc/

Freshwater Molluscs
- Information for county residents, including map of mollusc habitat.
- http://www.epa.gov/espp/indiana/posey.htm

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