Scuba Diving magazine - Rodale's Scuba Diving magazine provides comprehensive reviews of travel destinations, as well as equipment reviews, tips and free web-based e-mail accounts.

Diving Index - An online scuba diving directory.

Lonely Planet - Provide good guide books, with better diving sections than most of the general guide books.

Scuba Sites - Provides reviews of dive sites by other divers.

UK Dive Trips - 2DIVE4 are a friendly Scuba Diving Centre covering Essex, Hertfordshire and Cambridgeshire teaching PADI courses from introductory through to a professional level. They also offer equipment servicing, dive trips/holidays and a dive club.

South Pacific Organiser - Guidebook writer David Stanley provides mini-guides to South Pacific destinations, island maps, listings of films, music, and books, answers to FAQs, and links to numerous other travel sites relating to the South Pacific.

Wetsuit Wearhouse is an authorized retailer of diving and every other type of wetsuit. They also have many useful resources, such as this one on buying a diving suit