Student Conservation Association - Provides students of all ages in the USA the opportunity to serve and protect national parks, forests and urban communities. 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 Association of State Conservation Agencies (NASCA) - News, membership and annual meeting information, policies, and newsletter. The Conservation Fund - Non-profit partnerships to preserve the USA outdoor heritage -- background information, news, publications, programs. 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). Scorecard - Information about pollution problems and toxic chemicals by zip code or pollutant name. Includes news, FAQ, glossary and forum. EPA's Surf Your Watershed - Environmental Protection Agency's service to help citizens locate environmental information about their local regions.