- Texas Parks and Wildlife Department
- Texas Cooperative Extension
- City of Austin Volunteer Opportunities
- LCRA Parks and Recreation
- Austin Sierra Club
- The Nature Conservancy of Texas
- Lady Bird Johnson Wildflower Center
- Wild Basin Wilderness Preserve
- Hornsby Bend Center for Environmental Research
- Bat Conservation International
- Native Plant Society of Texas
- Travis Audubon Society – Report that rare bird sighting!
Nature Sites
- Nature Writers of Texas
- Dragonfly Maturation – impressive macro photos of dragonfly newly emerged from larva
- Austin Butterfly Forum
- Texas Entomology
- Orion Society – Magazine of people and nature
- Enature.com – searchable online field guides
- Nature -International weekly journal of science
- Ecology & Society Journal
- Mammals of Texas Online Book
- Texas Native Trees
- Know your grasses
- TX-Butterfly listserv – University of Houston
- Butterflies and Moths of North America
- Star Date – What’s going on in the night sky tonight? From the UT MacDonald Observatory
- Recycling tips
- Science Under the Stars
