American Geophysical Union
Athena: Mineralogy collection of databases, mineral lists, and photos
Big Bend National Park
Big Bend Virtual Field Trip
Bureau of Land Management
California Office of Water Education
Cal Tech's GPS Division Home Page
Canada:

Geological Survey of Canada

G.S.C. Atlantic
Carbon Dioxide Information Analysis Center, information on global change
CSC Earth Science Server --Finland
DINOSAURS page of links
DOE's National Oil Program
EARTH SCIENCE --page of links
Edwards Aquifer Research and Data Center

(Southwest Texas State University)
EPA--U.S. Environmental Protection Agency
Fact Sheets USGS
Geode Use GEO-DATA Explorer (GEODE) to access, view, and download information from geo-spatial databases containing a broad spectrum of data produced by the USGS and other government agencies
Geographic NameserverGeographic Names Information System, United States and Territories
Geologic Time timetable, information on each period
Geological Photographs, National Archive of from the UK
Geological survey pages:

New Publications of the US Geological Survey

U.S. Geological Survey
Geology 101 at University of Washington
GeologyLink news and information
Global Climate Change Student Guide comprehensive work for geology, geography and environmental science students studying climate change
Grand Canyon Home Page
Icelandic Geology Resources includes beginner's introduction to Iceland's dynamic geology, also news, links, and other information
Institute for Geophysics (UT Austin)
International Union of Geological Sciences
Internet Resources in Earth Sciences --Earth Sciences, Planetary Sciences, Geography, Geophysics / Seismology, Climatology, Oceanography (University of California-Berkeley)
Jason Project "From oceans to rain forests, from polar regions to volcanoes, the JASON Project explores Planet Earth and exposes students to leading scientists who work with them to examine its biological and geological development"
Jet Propulsion Laboratory
Journal of Petrology
Mapping resources:

California Geographic Survey

EROS Data Center (imagery information)

Illinois State Museum's FAUNMAP

(North American paleofaunal assemblages)

University of Georgia's Rare Map Collection

UT Austin Map Collection
Meteoritics, Institute of University of New Mexico
Minerals Yearbook USGS
MIT's Earth Resources Laboratory
Museum of Paleontology (earth history site at U.C. Berkeley)
NASA/JPL Imaging Radar Home Page
NASA/JSC Digital Image Collection
NASA/JSC Earth Observations Project
National Geophysical Data Center
National Speleological Society
Ocean Drilling Program provides information on the global ODP/JOIDES program.. A&M
Origins - Earth's Formation Exploratorium
Paleontology covers phylogeny, geology, and evolution
Penn State's Earth System Science Center
Periodic Chart of Elements
Petroleum and Geosystems Engineering (UT Austin)
Plate Tectonics, the story of
Preservation issues - Oversized Color Images
Robotic Antarctic Meteorite Search --Totally cool! "The goal of this initiative is to enable autonomous discovery of Antarctic meteorites using robotic search and on-site automatic classification of rock samples."
Rockhounds Science and Technology, Government Information Sources in (from St. Mary's University)
SCIENCE NEWS page of links
SCI/TECH NEWS page of links
Shale Photos collection of core samples and shale deposits, some under polarized light
SIR-C/X-SAR --Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar is a joint U.S.-German-Italian project that uses a highly sophisticated imaging radar to capture images of Earth.
Society for Exploration Geophysics
Society for Sedimentary Geology
Tectonic Activity Map, Digital a new visualization tool for both researcher and educator alike to better understand tectonic activity of our planet for the past 1 million years
Texas Memorial Museum
Texas Speleological Survey
Texas Tech Geology Department
Texas Water Development Board
Texas Water Resources Institute (TWRI) WaterNet (Texas A&M)
Theory of Permian-Triassic Mass Extinction "Asteroid or Comet Triggered Death of Most Species 250 Million Years Ago"
Theory of Permian-Triassic Mass Extinction "New Evidence Ties Mass Extinction to Massive Collision"
Theory of Permian-Triassic Mass Extinction "Asteroid 'Destroyed Life 250m Years Ago'"
Theory of Permian-Triassic Mass Extinction "Asteroid Killed 90 Percent of Life on Earth Millions of Years Ago"
USGS Fact Sheets U.S. Geologic Survey
USGS Learning Web natural sciences for k-12
U.S. Geological Survey --U.S. Department of the Interior
UTDOGS -University of Texas at Austin's Department of Geological Sciences page
Virtual Geologic Field Trip to the Permian Reef Complex, Guadalupe and Delaware Mountains, New Mexico - West Texas
Volcanoes of Canada Canada has examples of almost every type of volcano. Although none are erupting now, at least 3 did in the last few hundred years and numerous others have the potential to erupt in the near future
Volcano Pages:

Alaska Volcano Observatory

Dartmouth's Electronic Volcano Home Page

MTU Volcanoes Page

MTU Rabaul Caldera

SIR-C/X-SAR --Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar is a joint

U.S.-German-Italian project that uses a highly sophisticated imaging radar to capture images of Earth.

University of North DakotaVolcano World

Volcano World best volcano site on the Net
Volcano Research Center University of Tokyo

Yellowstone Volcano Observatory Monitoring the Largest Volcanic System in North America
Water related sites:

Texas Water Development Board

U.S.G.S. Water Resources Information
Weather--Meteorological Service of Canada
Weather--National Weather Service --National Oceanic and Atmospheric Administration
World Energy Project from the U.S. Geologic Survey
World Records in Earth Sciences from Extreme Science
Yellowstone Volcano Observatory Monitoring the Largest Volcanic System in North America
Zircons Are Forever zircon chemistry and mantle formation studies