Handbook of Texas Online
- Current and historical information about Robertson County.
- http://www.tsha.utexas.edu/handbook/online/articles/RR/hcr9.html

The Political Graveyard: Robertson County, Tex.
- Information about politicians that lived or died in the county.
- http://www.politicalgraveyard.com/geo/TX/RB.html

Amphibians and Reptiles in Robertson County
- Texas Cooperative Wildlife Collection list of species found in the county.
- http://wfscnet.tamu.edu/tcwc/checklist/ROBER198.HTM

TXGenWeb - Robertson County
- Robertson County, Texas genealogy. Contains cemetery and county records, family histories, local resources, maps, county history, links, and historic places.
- http://www.rootsweb.com/~txrober2

Related Robertson County Texas Families
- For families with genealogical connections to Robertson County. Includes names, searchable GEDCOM file, and ancestor/descendent charts.
- http://www.familytreemaker.com/users/b/r/u/William-K-Brunette/