Geological Society of the Oregon Country
Central Oregon Rock Collectors Club
Northwest Geological Society
Oregon Department of Geology & Mineral Industries (DOGAMI)
Oregon Society of Soil Scientists
SERC - The Science Education Resource Center at Carleton College
Earthscope - activities, lesson plans, map tools, visualizations
American Geosciences Institute
International Association of Volcanology and Chemistry of the Earth's Interior
Mount St. Helens Science & Learning Center