| Geological Society of America |
| U.S. Geological Survey |
| SEPM (Society for Sedimentary Geology) |
| RockWare Inc. Earth Science Software |
| Geostatistics Software |
| U.S. Environmental Protection Agency |
| Environmental Professional's Homepage (clay.net) |
| Current Weather (SF Bay Area) |
| U.S. West Coast Satellite Image |
| Local Weather Radar (SF Bay Area) |
| Recent Earthquakes (SF Bay Area) |
| Mount Umunhum Seismograph (San Jose Area) |
