Athena Earth Sciences Links
   Directory of earth science resources by Pierre Perroud.
   http://un2sg4.unige.ch/athena/mineral/minlinks.html

Columbia Earthscape
   A resource that aims to select a wide range of topics to be made available for researchers, teachers, students, and decision makers involved in the field. Composed of four main areas: research, education, Earth Affairs Magazine, and links.
   http://www.earthscape.org/

GeoIndex
   Internet directory of companies, associations, government, and education sites for the environmental, geology, geotechnical, hydrogeology, mining, and petroleum fields.
   http://www.geoindex.com/geoindex/

Geologia.com
   A portal for earth scientists, including selected Internet links (topics are geophysics, geotechnics, hydrogeology, and GIS) and commercial material.
   http://www.geologia.com/english/welcome_eng.html

Geologic Resources
   Resources for geoscientists, engineers, and other environmental professionals. Includes free resources, software, books, and instruments.
   http://www.geologicresources.com/

Geolor Earth Watch
   Summaries of and links to environmental issues and Earth phenomena.
   http://geolor.pitas.com/

Geosource
   Resources for human geography, physical geography, planning, geoscience and environmental science. Provided by Utrecht University Library.
   http://www.library.uu.nl/geosource/index.html

Global Change Directory
   NASA collection of links to internet resources on global change, earth science and environmental data and information.
   http://gcmd.gsfc.nasa.gov/Aboutus/sitemap.html

Links for Mineralogists
   Annotated links to internet resources, especially for mineralogists, petrologists, crystallographers,and geologists.
   http://www.mineralogie.uni-wuerzburg.de/links.html

Wind and Sea
   Atmospheric and oceanic sciences Internet Resource Locator provided by the NOAA Central Library.
   http://www.lib.noaa.gov/docs/wind/windandsea.html