The Political Graveyard: Clay County, Miss.
- Database of political history and cemeteries, with brief biographical entries for political figures connected to the county, living and dead, from the 1700s to the present.
- http://politicalgraveyard.com/geo/MS/CL.html#CEM

National Register of Historical Places - Clay County
- Directory of historical places and cultural resources for the county. Offers historical significance, architect details, and related information.
- http://www.historicdistricts.com/MS/Clay/state.html

Clay County Genealogical Society
- Includes officers, calendar, publications, submissions, resources, and contact information.
- http://www.rootsweb.com/~msccgs/

Mississippi Department of Transportation
- PDF of Clay county roads. [Adobe Acrobat Reader required]
- http://www.gomdot.com/maps/County_maps/Clay.pdf

Clay County, Mississippi - GenWeb
- Information and links for genealogical researchers.
- http://www.rootsweb.com/~msclay/