Adirondack Science Online http://www.adkscience.org/
Educational program using the Adirondack mountains. Includes areas for contributing data, reporting events, discussing observations, and learning from findings.
EarthNet http://agc.bio.ns.ca/EarthNet/
Earth science information for both teachers and students. Glossary, lesson plans, extensive links, lists of topics, and other resources.
Museums Teaching Planet Earth http://earth.rice.edu/mtpe/
Educational earth science resources and software produced by Rice University in collaboration with the Houston Museum of Natural Science, funded by NASA under the Office of Earth Science