Friends of the DunesA non-profit orgainzation dedicated to preserving dunes in Humboldt County. Offering guided walks, school education programs, restoration days and a quarterly newsletter.
North Coast Chapter of the California Native Plant SocietyAn organization of amateurs and professionals dedicated to the preservation of California's native flora. Arcata.
Marine Wildlife Care CenterA rehabilitation center for oiled seabirds at Humboldt State University, part of the Oiled Wildlife Care Network. Arcata.
Western Fishboat Owners AssociationAn organization representing hook-and-line albacore vessels, and working with other pelagic fishermen on shared issues. Based in Eureka.
Astronomers of HumboldtAmateur astronomers hosting public presentations and public observing sessions. Club members and their equipment are available as a public service for educational, charitable, and school groups.
California Land Use Planning Information NetworkProvides land use data throughout California, sorted by county.