Goddard Earth Sciences (GES) Data and Information Services Center (DISC) Distributed Active Archive Center (DAAC)  
   Provides data, data related services, and data support for global environmental change research and education. Funded through NASA's Earth Observing System (EOS) as a source of information about the upper atmosphere, atmospheric dynamics, and the global b
   http://daac.gsfc.nasa.gov/

USDOC/NOAA/NESDIS/National Geophysical Data Center  
   Manages environmental data in the fields of marine geology and geophysics, paleoclimatology, solar-terrestrial physics, solid earth geophysics, and glaciology (snow and ice).
   http://www.ngdc.noaa.gov/

Carbon Dioxide Information Analysis Center (CDIAC)  
   Global-change data and information analysis for the US Department of Energy (DOE). Compiles and maintains extensive international data sets on atmospheric chemistry, particularly atmospheric concentrations of carbon dioxide, methane & other radiativel
   http://cdiac.esd.ornl.gov/

ORNL/NASA Biogeochemical Dynamics Distributed Active Archive Center (DAAC)  
   Source for biogeochemical and ecological data for use in studying environmental processes. Data were collected on the ground, from aircraft, and by satellite, or generated by computer models.
   http://www-eosdis.ornl.gov/

Unidata Internet Data Distribution (IDD)  
   Community of over 130 universities building a system for disseminating near real-time earth observations via the Internet. The Unidata IDD is designed so a university can request that certain data sets be delivered to computers at their site as soon as th
   http://www.unidata.ucar.edu/projects/idd/index.html

NSF Geosciences Unidata Integrated Earth Information Server (IEIS)  
   Information that arrives via the experimental nation-wide Unidata Internet Data Distribution (IDD) network, which automatically delivers real-time environmental observations from observing systems around the globe.
   http://atm.geo.nsf.gov/

High-resolution Shoreline Database  
   Information on digital coastline and shorelines data available from various sources. Provided by the NOAA National Geophysical Data Center (NGDC) Marine Geology and Geophysics Division and collocated World Data Center A for Marine Geology and Geophysics.
   http://www.ngdc.noaa.gov/mgg/shorelines/gshhs.html

NSSDC OMNIWeb  
   Data retrieval and analysis interface to NSSDC's OMNI data which consist of 1-hour-resolution "near-Earth" solar wind magnetic field and plasma data, energetic proton fluxes (1-60 MeV), and geomagnetic and solar activity indices. It allows you t
   http://nssdc.gsfc.nasa.gov/omniweb/ow.html

NASA's Distributed Active Archive Centers  
   Processes, archivees, documents, and distributes Earth science and socioeconomic data.
   http://nasadaacs.eos.nasa.gov/

EOS-WEBSTER  
   Digital library of free, customized earth science data from The University of New Hampshire. Data can be FTPd or mailed on a customized CD.
   http://eos-webster.sr.unh.edu/

British Atmospheric Data Centre (BADC)  
   The Natural Environment Research Council (NERC) designated data centre for the Atmospheric Sciences in the United Kingdom.
   http://www.badc.rl.ac.uk/

EROS Data Center  
   EROS Data Center is home to the U.S. National Satellite Land Remote Sensing Data Archive. Also the distributed active archive center, or DAAC, for land processes on behalf of NASA's Mission to Planet Earth.
   http://edc.usgs.gov/