Organizations
South Coast Geological Society
National Association of Geoscience Teachers
General Geology Topics
Glossary of Geology -- Houghton-Mifflin
Earth Scientist's Periodic Table
Plate Tectonics -- a USGS Tutorial
Plate Tectonics -- James Marshall University
Earth Science Picture of the Day
Minerals and Rocks
Earthquakes
Northern California Earthquake Center
Volcanoes
Volcano World -- Oregon State University
How Volcanoes Work -- San Diego State
Eruptions: A blog about volcanoes
California Volcano Observatory
Yellowstone Volcano Observatory
Environmental Issues
The Discovery of Global Warming
The Solar System
Schools and Careers
Cal State Fullerton Geological Sciences
Cal State Long Beach Geological Sciences
San Diego State Geological Sciences