Global Positioning System (GPS)	www.gpsy.com
	www.colorado.edu
Geodesy	www.ngs.noaa.gov
Oceans, Seas and Law	www.enchantedlearning.com
	www.earthquake.usgs.gov
	www.admiraltylawguide.com
	www.emsc-csem.org
	www.researchvessels.org
	www.gosic.org
	www.onr.navy.mil
Tsunami	www.iri.columbia.edu
	www.climate.lk
Legal Continental Shelf (LCS)	www.un.org
	www.deocom.org
Tropical Storms	www.solar.ifa.hawaii.edu
Tide Prediction	www.easytide.ukho.gov.uk
	www.ilikai.soest.hawaii.edu
	www.nara.ac.lk
Notices to Mariners	www.hydrobharat.org