Distances.com	http://www.distances.com
Republic of Turkey Prime Minister's Office Maritime Underecretariat	http://www.denizcililk.gov.tr
Turkish Chamber of Shipping	http://www.chamber-of-shipping.org.tr
Turkish State Meteorological Service	http://www.meteor.gov.tr
Turmepa (Turkish Marine Environment Protection Association)	http://www.turmepa.com.org.tr
World Atlas of Maps Flags and Geograpy Facts and Figures	http://www.worldatlas.com
World Sea Ports - Maritime Resources - Port Guides	http://www.ports.com
World Weather Information Service	http://www.worldweather.org