Southern California Botanists
- Organization of individuals dedicated to the study and conservation of native plants and plant communities of southern California. Information about the journal, field trips and symposia, and membership.
- http://www.socalbot.org/

Southern California Sigma Xi Science Café
- Monthly meetings in local coffee shops to discuss the science behind current events. Includes information about current meeting, subject of future meetings, and how to register to obtain the location and subject of past and future meetings.
- http://www.socal-sciencecafe.org

Southern California Wetlands Recovery Project Homepage
- A partnership of agencies cooperating to restore coastal wetlands and watersheds between Point Conception and the Mexican border. Includes maps, photos and project descriptions.
- http://www.scwrp.org/

Oiled Wildlife Care Network
- Responds to oiled birds washing ashore on beaches from Ventura to Los Angeles. Includes volunteer and research information.
- http://www.vetmed.ucdavis.edu/owcn/

Salton Basin-Colorado Delta Mothersite
- University-maintained resource on the natural, economic, and human aspects of this binational region, including hydrology, Salton Sea ecology and limnology, geothermal resources, Native Americans, and current issues.
- http://www.sci.sdsu.edu/salton/SaltonBasinHomePage.html

BeWaterwise.com
- Water conservation information from the family of regional water agencies, including landscaping, native plant use and watering index.
- http://www.bewaterwise.com/

The San Gorgonio Wilderness Association
- Preserves the San Gorgonio Wilderness and San Bernardino National Forest. Covers history, volunteer program and trail conditions.
- http://www.sgwa.org/

Salton Sea Authority
- Governmental agency in Southern California working for environmental restoration of California's largest lake. News and information about the goals and techniques of the restoration project.
- http://saltonsea.ca.gov

Southern California Steelhead Recovery Coalition
- Organization of environmental, conservation, surfing, sport and commercial fishing, and river groups that have joined together to restore free-flowing rivers and streams, riparian habitat, and watersheds. Press, platform paper, and member links.
- http://www.socalsteelhead.org/