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.
GeoIndex - - Internet directory of companies, associations, government, and education sites for the environmental, geology, geotechnical, hydrogeology, mining, and petroleum fields.
Geologia.com - - A portal for earth scientists, including selected Internet links (topics are geophysics, geotechnics, hydrogeology, and GIS) and commercial material.
Geologic Resources - - Resources for geoscientists, engineers, and other environmental professionals. Includes free resources, software, books, and instruments.
Geolor Earth Watch - - Summaries of and links to environmental issues and Earth phenomena.
Geosource - - Resources for human geography, physical geography, planning, geoscience and environmental science. Provided by Utrecht University Library.
Global Change Directory - - NASA collection of links to internet resources on global change, earth science and environmental data and information.
Links for Mineralogists - - Annotated links to internet resources, especially for mineralogists, petrologists, crystallographers,and geologists.
Muppetmaster - - Extensive source of earth science related links, with emphasis on resources appropriate to students.
Planet Science - - Live information and views on volcanoes, space, solar eclipses, hurricanes and links to live views from around Earth.
Wind and Sea - - Atmospheric and oceanic sciences Internet Resource Locator provided by the NOAA Central Library.