val-dor.cc.buffalo.edu The Cornucopia of Disability Information carries numerous information resources on disability issues and links to other disability-related services.
ENVIRONMENT
ecosys.drdr.virginia.edu Copies of Environmental Protection Agency factsheets on hundreds of chemicals, searchable by keyword. Select "Education" and then "Environmental fact sheets."
envirolink.org Dozens of documents and files related to environmental activism around the world.
ENTOMOLOGY
spider.ento.csiro.au All about creepy-crawly things, both the good and the bad ones.
GEOLOGY
gopher.stolaf.edu Select "Internet Resources" and then "Weather and geography" for information on recent earthquakes.
GOVERNMENT
marvel.loc.gov Run by the Library of Congress, this site provides numerous resources, including access to the Library card catalog and all manner of information about the U.S. Congress.