IMO Standard Marine Communication Phrases
   Draft developed by the Maritime Safety Committee of the International Maritime Organisation to help improve safety of navigation. [PDF]
   http://www.actme.es/satanby/miWeb3/archivos/SMCP.pdf

Inmarsat Ship Directory
   Listings of ships with Inmarsat satellite communications; telex, fax, phone numbers for Inmarsat-A, B, M and Mini-M, and telex/e-mail addresses for Inmarsat-C terminals. Search by ship name with a minimum of 3 characters, or call-sign. A step-by-step guid
   http://maritime.inmarsat.com/ships_directory.aspx

Marine Radio in Canada
   General information covering marine radio in Canada.
   http://www.ncf.carleton.ca/boating/vhf.html

Maritime Mobile Access and Retrieval System (MARS)
   System allows the Maritime Community to consult the current contents of the master ITU Ship station database.
   http://www.itu.int/MARS/

US Coast Guard Maritime Telecommunications Information
   Current information on all the maritime telecommunications systems you can think of. Includes links to Navtex, Inmarsat C, EPIRBs, GMDSS, HF and VHF radiotelephone, IMO and contacts with the U.S. Coast Guard.
   http://www.navcen.uscg.gov/marcomms/default.htm