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African Marine Atlas
Australian Coastal Atlas
Australian Marine Spatial Information System (AMSIS)
Caspian Sea Viewer (oil spill monitoring)
Channel Coast Observatory (UK)
CMRC Marine Geographical Information System
Community Resource Inventory Online (Connecticut)
Digital Coast: Legislative Atlas (formerly the Ocean Planning Information System or OPIS)
Doris: Marine Protected Area Decision-Support, part of MarineMap
East Pacific Rise (EPR) Data Browser (WHOI)
Environmental Marine Information System for Europe (EMIS)
Florida Fish and Wildlife Research Institute Web Mapping(including Tampa Bay, Big Cypress, South Atlantic)
Geological Survey of Ireland (GSI) Online Mapping
Geological Survey of Ireland (GSI) Interactive Web Data Delivery System (IWDDS)
Gulf of Mexico Marine Debris Project
Hawaii Tsunami Hazard Information Service
MAGIC: Coastal and Marine Resource Atlas (UK)
Marine Irish Digital Atlas (MIDA)
MESH webGIS (Mapping European Seabed Habitats)
National Geophysical Data Center (NGDC) DEM Discovery Portal (includes tsunami inundation)
NGDC Multibeam Bathymetric Data Viewer
NOAA Coastal Assessment and Data Synthesis System
NOAA Electronic Nautical Charts Online (ENC Direct to GIS)
   Related Online Chart Viewer
NOAA National Ocean Service (NOS) MapFinder
NOAA National Ocean Service (NOS) Marine GIS
NOAA nowCOAST (recently updated, March, 2006)
Ocean Globe (International Underwater Explorations, Hawaii, Joe Breman)
Ohio Coastal Atlas
Oregon Coastal Atlas
Oregon North Coast Explorer
Pacific Island Climate Maps (OSU Spatial Climate Analysis Service)
PaCOOS: West Coast Habitat Portal
Placentia Bay, Canada - Multibeam Data Viewers (Smart Bay)
San Diego Marine Information System (SDMIS)
Shore and Sea Boundaries (NOAA Office of Coast Survey)
USGS Gulf of Mexico GIS/IMS
USGS - NOAA Coastal TopoBathy Viewer
OBIS-SEAMAP
Oregon Coastal Atlas
Seafloor Data and Observation Visualization Environment (SeaDOVE) (once at the site, scroll down)
USGS usSEABED Internet Map Site
Tsunami Disaster Mapping for Indian Ocean Coastal Regions
Virginia Coastal GEMS - Geospatial Education Mapping System
Virtual Research Vessel, featuring East Pacific Rise (EPR) data (WHOI)
Washington Coastal Atlas
West Coast Marine Habitat Server (in support of IOOS and PACOOS)
Wisconsin Sea Grant Resources and more

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