The Conservation Fund - Non-profit partnerships to preserve the USA outdoor heritage -- background information, news, publications, programs.
EPA's Surf Your Watershed - Environmental Protection Agency's service to help citizens locate environmental information about their local regions.
Great Lakes Environmental Directory - Web directory and search engine for this region, including data access, links to government agencies and environmental groups, success stories, and other resources.
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 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).