Photo courtesy of flickr user only_point_five
Census of Marine Life - Marine Life Discoveries
NASA's Jet Propulsion Laboratory - Ocean Surface Topography from Space
N.C. Department of Environment and Natural Resources - Division of Coastal Management
NOAA's National Centers for Coastal Ocean Science
Scripps Institution of Oceanography - explorations e-magazine
Tree of Life - may be helpful in researching a specific organism
U.S. Geological Survey (USGS) - Science Topics