- The Conservation Fund - Non-profit partnerships to preserve the USA outdoor heritage -- background information, news, publications, programs.
- Student Conservation Association - Provides students of all ages in the USA the opportunity to serve and protect national parks, forests and urban communities.
- Scorecard - Information about pollution problems and toxic chemicals by zip code or pollutant name. Includes news, FAQ, glossary and forum.
- Science and Engineering State Profiles - The Division of Science Resources Studies (SRS) of the National Science Foundation (NSF) publishes the report, Science and Engineering State Profiles, annually.
- The National Academies - Brings together committees of experts in all areas of scientific and technological endeavors to serve pro bono to address critical national issues and give advice to the federal government and the public. Includes news, career information, workshops and reports.
- National Biological Information Infrastructure - An electronic gateway to biological data and information maintained by federal, state, and local government agencies.
- EPA's Surf Your Watershed - Environmental Protection Agency's service to help citizens locate environmental information about their local regions.
- National Resources Inventory - Combines field observations with remote sensing to monitor land use changes and trends nationwide. Data and trends from inventories done at 5-year intervals beginning in 1982 (most recently in 1997).
- National Association of State Conservation Agencies (NASCA) - News, membership and annual meeting information, policies, and newsletter.
- Digital Coast: Legislative Atlas - Extensive information for use in coastal management in the U.S. Atlantic coast and Gulf of Mexico states. Includes legislation, spatial data, interactive mapping capabilities, and discussions of topics including beach nourishment and dredge spoil disposal.