Bats of Austin - Night Wings
- Information about the Mexican freetailed bats living under the Congress Avenue bridge.
- http://www.io.com/house/bats.html

GreenGirls.Net
- Aims to be a network of powerful women who care deeply about the environment, and are committed to helping protect the precious natural resources of our neighborhoods, communities, and the world.
- http://www.greengirls.net

Austin Nature Day
- A celebration of Austin's beauty, vitality and diversity of natural resources and landscapes. Includes list of events.
- http://www.austinnatureday.org/

Bob's Backyard Squirrel Cam
- Includes live cam and photos of squirrels, birds, and reptiles.
- http://www.squirrelhouse.com/

Austin Nature and Science Center
- Acts as a living museum to increase knowledge, awareness, and appreciation of the area's natural environment and its connection to other world ecosystems. Includes a list of programs, schedule of exhibits, and resources for teachers.
- http://www.ci.austin.tx.us/ansc/

The Medical Institute for Sexual Health
- A nonprofit scientific, educational organization to confront the global epidemics of nonmarital pregnancy and sexually transmitted disease with incisive health care data.
- http://www.medinstitute.org/

Hornsby Bend
- Recycling center for sewage and yard trimmings, popular birdwatching site, demonstration site for green building, and a research site for riparian ecology, biosolids, and the soil food web.
- http://www.sbs.utexas.edu/hornsby/

Zilker Metropolitan Park
- 351 acre park is home to a variety of recreation opportunities and special events.
- http://www.ci.austin.tx.us/zilker/

Austin Fossils
- Locations for fossil collection. From the University of Texas.
- http://www.lib.utexas.edu/geo/ggtc/ch5.html

Austin Paleontological Society
- Membership includes people with various levels of interest and expertise in the field of Paleontology. Describes club activities, meeting time and place, officers, and links to related clubs.
- http://www.tmm.utexas.edu/sponsored_sites/aps/index.htm

Austin Reptile Service
- Works for the conservation of native Texas reptiles through education. Includes a list of educational programs and snake myths.
- http://www.austinreptileservice.net/

Bill Hicks Foundation for Wildlife Rehabilitation
- Rescues orphaned and injured wildlife in the Texas Hill Country. Includes photos of Hicks and wildlife, video clips, and an online store with donation form.
- http://www.billhicks.com/

City of Austin Oak Wilt Suppression Program
- Information on the oak wilt disease, and its control in the city.
- http://www.ci.austin.tx.us/oakwilt/

Scenic Austin
- Non-profit organization dedicated to preserving and enhancing the visual environment of Austin and its surroundings.
- http://www.scenicaustin.org/

Keep Austin Beautiful
- Empowers citizens to take personal responsibility for enhancing the community's environment. Includes a calendar of events, a list of programs, trash facts, FAQ, donation information, and how to get involved.
- http://www.keepaustinbeautiful.org/

Clean Air Force
- Coalition working to increase community awareness of air quality issues. Site includes a citizen's guide to cleaner air, a list of programs, calendar of meetings and events, and links to daily ozone readings.
- http://www.cleanairforce.org/

Spa Waters of Texas
- Promotes educational forums, presents historical research, and provides consultation to bring about a revival of authentic spa lifestyle. Site includes recommended reading and consulting information.
- http://www.spawatersoftexas.org/

City of Austin - Nature Preserves
- Sanctuaries for native plants, native animals, and unique natural features providing educational and scientific opportunities. Includes maps to preserves, photos, and volunteer opportunities.
- http://www.ci.austin.tx.us/preserves/

Bull Creek Foundation
- Promotes a balance between nature, recreation, and sustainable economic development within the Bull Creek watershed. Includes information about trails, water quality, and educational and volunteer events.
- http://www.bullcreek.net/

Capital Area Beekeepers
- Includes information about all kinds of bees and why they form an integral part of the environment. Also includes information about their annual workshop.
- http://www.main.org/cahbs/

Tree Folks
- Promotes the renewal, restoration, and care of urban forest through public tree plantings and education. Includes a planting guide, a list of projects, and membership information.
- http://www.treefolks.org/

Austin Pond Society
- Includes a list of Koi and pond clubs around the world. Also includes photos, a forum, calendar of events, and membership information.
- http://austinpondsociety.org/

Plateau Integrated Land and Wildlife Management
- Works to preserve the natural environment by managing private property for native wildlife. Includes information about requirements and tax benefits, FAQ, and profiles of the staff.
- http://www.plateauwildlife.com/

Austin Sierra Club
- Information about membership and meetings, trips, and workshops. Includes an archive of newsletter articles and a section for singles.
- http://texas.sierraclub.org/austin/

Save Our Springs Alliance
- News, legal documents, and updates on this ongoing environmental protection project.
- http://www.sosalliance.org/

Bat Conservation International
- Austin-based group whose mission is to protect and restore bats and their habitats worldwide. Includes information about education, conservation efforts, articles, projects, places to see bats, and the "Bat Cam."
- http://www.batcon.org/

Central Texas Paleontological Society
- A scientific, non-profit, community-based organization devoted to the study of fossils. Site includes contact information and meeting times.
- http://www.texaspaleo.com/ctps/

Austin Astronomical Society
- A non-profit organization for anyone interested in astronomy or space sciences.
- http://www.austinastro.org/

Capital of Texas Aquarium
- An overview of the prospective Austin aquarium, including volunteer and donation specifics.
- http://www.main.org/aquarium/

Lady Bird Johnson Wildflower Center
- Publications, native plant information, and schedules of events and ongoing educational programs.
- http://www.wildflower.org/

American Botanical Council
- Listing of the services and publications of the ABC. Includes a number of publications and samples of medicinal plant monographs, a glossary, and resource lists.
- http://www.herbalgram.org/

Save Barton Creek Association
- Promoting public awareness of Barton Springs and Barton Creek via scientific and environmental information.
- http://www.savebartoncreek.org/

Wild Basin Wilderness Preserve
- Mission statement, trail map, schedule of events, plus volunteer and environmental education program information.
- http://www.wildbasin.org/