Directory of Internet resources intended to support, enhance and extend effective environmental education in grades K-12. Includes classroom materials, publications, information on grants, and general environmental links.

Directory for sites about the environment including field studies and activities directed at influencing environmental concerns.

Comprehensive directory of environmental educational resources for all audiences and age levels, from the Center for the National Institute for the Environment

An extensive list of higher education environmental programs around the world (but mostly in the US), compiled by Brown University.

Minnesota's interactive directory of environmental education resources lists events, curriculum resources, learning centers, and other resources.