- National Oceanic and Atmospheric Administration (NOAA)
- an organization of the U.S. Department of Commerce. NOAA warns of dangerous weather, charts our seas and skies, guides our use and protection of ocean and coastal resources, and conducts research to improve our understanding and stewardship of the environment which sustains us all. - The GLOBE Program - Global Learning and Observations to Benefit the Environment - involves students from over 80 countries in collecting local environmental data. Observations are shared between schools and with scientists via the Internet.
- Space Environment Center - Space weather, aurora science, space physics, forecasts.
- International Year of the Ocean - 1998 was the Year of the Ocean. This site contains valuable information and serves as a portal to activities and conferences that took place in relation to this declaration.
- NOAA Central Library - Photo Collection - Searchable database of images.
- NWS Internet Weather Source - Official NWS weather forecasts, warnings, and meteorological products including weather maps, radar graphics, marine forecasts, aviation forecasts and international weather conditions.
- NOAA Office of Public and Constituent Affairs - Publishes a wide range of reports related to oceans and ocean resources.