• Divers Alert Network A non-profit international organization, with its emergency hotline, provides dive safety and medical information, medical research programs, first aid training programs, emergency oxygen equipment, and affordable accident insurance.

• Diving Medicine Online Comprehensive information about diving and undersea medicine for the non-medical diver, the non-diving physician and the specialist. Online physicians and consultants answer questions about diving medical problems.

• European Underwater and Baromedical Society Dedicated to the study and promotion of diving and hyperbaric medicine.

• Hyperbaric Medicine Unit , Grampian University Hospital Information for SCUBA divers by the Grampian University Hospitals NHS Trust Hyperbaric Medicine Unit about their services as well as treatment of the bends and CO poisoning.

• Undersea and Hyperbaric Medicine Society A professional organization representing physicians, nurses and technicians in the field of hyperbaric medicine.