• U.S. Army Corps of Engineers San Francisco District
  http://www.spn.usace.army.mil/
  
  
• Corps Foundation
  http://www.corpsfoundation.org

Biology, Fish and Wildlife

California Department of Fish and Game http://www.dfg.ca.gov/

Ecology Section (1988 plant data) http://www.nwi.fws.gov/

U.S. Fish and Wildlife Service http://www.fws.gov/

Oceans and Coastal Information

California Ocean Resources http://www.ceres.ca.gov/CRA/ocean/html

Coastal Data http://cdip.ucsd.edu/

Scripps Institution of Oceanography http://sio.ucsd.edu/

NOAA National Ocean Service http://oceanservice.noaa.gov/

Coastal & Marine Geology (USGS WR) http://walrus.wr.usgs.gov/

Earth Science

Fragile Environments San Francisco Bay Wetlands http://walrus.wr.usgs.gov/research/

Earthquake Information (USGS) http://quake.wr.usgs.gov/

Geoscience Information Society http://www.geoinfo.org/