Centex Naturalist
- Photos and information about animal life, botany, and geology. Includes science curriculum resources.
- http://centexnaturalist.com/

Butterflies of Bell County, Texas
- Information about and pictures of all the known species of butterflies in the county.
- http://www.butterfliesandmoths.org/map?dc=5728&_dcc=1&si=44

Clearwater Underground Water Conservation District
- Responsible for management of groundwater in Bell County. Includes aquifer data, board members and meetings, and regulations.
- http://www.clearwaterdistrict.org/

Amphibians and Reptiles in Bell County
- Texas Cooperative Wildlife Collection list of species found in the county.
- http://wfscnet.tamu.edu/tcwc/checklist/BELL014.HTM