Earthquakes:

• Pacific NW Seismograph Network
• USGS Earthquake Information
• Western Canada Earthquake Information
• Malone SeismoSurf Directory 
• Project Impact (Seattle)
• Pacific Northwest Geodetic Array Data Analysis Center
• Great Cascadia Megathrust Earthquake--300th Anniversary

Volcanoes:

• Cascades Volcano Observatory
• Alaska Volcano Observatory
• Hawaiian Volcano Observatory
• Long Valley Observatory (California)
• VENTS Program (Juan de Fuca submarine volcanics)
• Volcano World Directory 
• Volcano Quarterly Online

Water

• USGS (Tacoma) Water Resources for Washington State
• EPA Enviromapper for Watersheds
• NW Sole Source Aquifers Map
• NW Sole Source Aquifers Information
• Spokane Aquifer, WA
• Columbia Basin Hydroelectric Projects

Tsunamis-Coastal-Marine:

• West Coast and Alaska Tsunami Center (Palmer, AK)
• Hinsdale Wave Research Laboratory (Corvallis, OR)
• Tsunami Information
• TsuInfo Alert Newsletter (Olympia, WA)
• NOAA Tsunami Program
• BC Tsunami Warning Program
• SW Washington Coastal Erosion Study
• Washington-Oregon Coastal Erosion
• USGS Coastal and Marine Geology
• Geological Survey of Canada--Marine Geoscience
• West Coast & Alaska Tsunami Warning Center
• Puget Sound Shorelines

Glaciology-Polar:

• North Cascade Glacier Climate Project
• Puget Sound Glaciation
• North Pole Environmental Observatory
• Office of Polar Programs--Polar Links
• International Glaciological Society--Glaciology Directory

Landslides, Geomagnetism, etcetera:

• Seattle Mapping Project
• Seattle GeoHazards
• Puget Sound Landslides
• USGS Landslides
• Kelso Landslide
• USGS Geomagnetism 
• Kola Superdeep Borehole
• Hope Slide, BC

Fossils:

• Fossils of North-Central British Columbia

Mining:

• BC and Yukon Chamber of Mines
• Info-Mine
• Mining Technology.com
• Northwest Mining Association
• EPA sourcebook for NW Hardrock Mining (draft)

Space-Astronomy:

• European Space Agency
• Hubble Telescope
• Jet Propulsion Laboratory
• NASA
• Russian Space Research Institute
• Comet Observation (NASA)

Museums:

• British Columbia Museum of Mining (Brittannia Beach, BC)
• Burke Museum of Natural History and Culture (Seattle, WA)
• Calgary Science Centre (Calgary, Alberta)
• Columbia River Exhibition of History, Science & Technology (Richland, WA)
• Condon Museum (Eugene, OR)
• Courtenay & District Museum & Paleontology Centre (Courtenay, BC)
• Crater Rock Museum (Central Point, OR)
• Dry Falls Interpretive Center (Coulee City, WA)
• Flourescent Mineral Display of S. Elroy McCaw (Pullman, WA)
• Fraser-Fort George Regional Museum (Prince George, BC)
• Frank Slide Interpretive Centre (Frank, Alberta)
• Ginkgo Petrified Forest State Park (Vantage, WA)
• Harold E. Culver--Study Memorial Museum (Pullman, WA)
• Idaho Museum of Mining and Geology (Boise, ID)
• Idaho Museum of Natural History (Pocatello, ID)
• Jacklin Collection (Pullman, WA)
• Klondike Gold Rush National Historic Park (Seattle, WA Unit)
• LeDuc #1 Oilfield Interpretive Centre (Devon, Alberta)
• H. R. McMillan Space Centre (Vancouver, BC)
• Mineral Museum at Montana Tech (Butte, MT)
• Montana Natural History Center (Missoula, MT)
• Museum of the Rockies (Bozeman, MT)
• Natural History Museum--Washington State University at Tri-Cities (Richland)
• Network of Oregon Science & Nature Centers
• Oil Sands Discovery Centre (Ft. McMurray, Alberta)
• OMSI-Oregon Museum of Science and Industry (Portland, OR)
• Oregon Trail Regional Museum (Cavin-Warfel Rock Collection) (Baker City, OR)
• Pacific Museum of the Earth (Vancouver, BC)
• Pacific Science Center (Seattle, WA)
• Palouse Discovery Science Center (Pullman, WA)
• Pacifc Tsunami Museum (Hilo, HI)
• Provencial Museum of Alberta (Edmonton, Alberta)
• Rice Northwest Museum of Rocks and Minerals (Hillsboro, OR)
• Royal BC Museum (Victoria, BC)
• Royal Tyrrell Museum (Drumheller, Alberta)
• The Science Factory (Eugene, OR)
• Stonerose Interpretive Center (Republic, WA)
• University of Oregon Museum of Natural History (Eugene, OR) 
• World Museum of Mining (Butte, MT)

Libraries and Information Centers:

• Geological Survey of Canada Branch Library (Vancouver, BC)
• Nature of the Northwest Information Center (Portland, OR)
• Quaternary Research Center (Seattle, WA)
• Univ. of Washington Natural Sciences Library (Seattle, WA)
• USGS Libraries
• Virtual Reading Room, Department of the Interior
• Washington Division of Geology and Earth Resources Library (Olympia, WA)

References and Databases:

• BC Ministry of Energy and Mines-Geology Publications
• BC Ministry of Energy and Mines--MINFILE
• USGS National Geologic Map Database 
• Terraserver Map and Air Photo Database
• TopoZone--Maps On Line
• Space Imaging
• Street Maps On Line
• Canadian Landscapes
• US Color Atlas Maps
• Grants and Resource Development Index
• Standard and Metric Unit Conversion Table
• CVO Standard and Metric Conversion Table

Geological Maps:

• Washington
• Oregon
• Idaho
• Montana
• British Columbia and Alberta (surficial geology map)
• USGS Digital Geologic Map Database

Geology Showcases:

• GeoMap, Vancouver, BC
• GeoScape Vancouver, BC
• Virtual geologic field trips (various NW and other USA locations)

Rocks/Hobby:

• Athena Mineralogy List
• Bob's Rock Shop
• US Rock Club List
• East King County Rock Club (Kirkland) 
• Everett Rock and Gem Club (Everett)
• Marysville Rock Club (Marysville)
• Northwest Opal Association (Tukwila)
• Washington State Mineral Council

GeoLink Directories:

• Dufumier GeoSurfing Pages
• Geochemistry Links
• Pangea Geology and Earth Science
• Revenant Geology Link Page
• Schlumberger Directory
• UNB Geology Resources
• University of Tromsø, Norway