Canadian Coast Guard - Explains purpose and services. Includes boating safety tips, marine notices, and other resource pages. In French and English.
DFT - Shipping - Information from the UK Department for Transport on maritime regulation and safety matters.
Marine Accident Investigation Branch - Provides information on the work of the MAIB, which is responsible for investigating all types of marine accidents, both to ships and to people on board them.
Sim Software - A small software development company focusing on marine navigation and safety. Free program.
U.S. Coast Guard Marine Safety Laboratory - Provides forensic oil analysis and expert testimony in support of the oil pollution law enforcement efforts for field investigators, districts, hearing officers, and federal agencies.