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