Breeders
Andvari Mastiffs and Cane Corsos, Atlasdogs Mastiffs, Avalon Mastiffs, Bailiff Mastiffs, Bearhill Mastiffs, Breton Mastiffs, BrimstoneMastiffs, Cabrico Mastiffs, Caledonia Mastiffs, Calgar E Mastiffs
Chats and Forums
English Mastiff Online Community, Mastiff Breeder List, Mastiff Health Mailing List, Mastiff Lists Central, Mastiff Mailing List, Mastiff Mailing List, Mastiff ShowSight, Typey Mastiffs, United Kingdom Mastiff Discussion Forum, Yahoo Mastiff Group
Clubs
Canadian Mastiff Club, French Mastiff Club, Garden State Mastiff Fanciers, Mastiff Club of America, Mastiff Club of Victoria, Mastiff Fanciers Of Western Canada, Midwest Mastiff Fanciers, Old English Mastiff Club, Pacific Northwest Mastiff Fanciers, Redwood Empire Mastiff Club
Pets
Barbeau's Home Page, Cairo's World, Candy Lane, Cold Spring Mastiffs, Deb and Dave Martin's Home Page, Dog's of My World, Gracie, Gryphon, Happy Birthday, Murf Murf, Henrey
Rescues and Shelters
California and Western Region Mastiff Rescue, Canisolida Mastiff Rescue, Dundee K-9 Rescue, Friends of Rescue Mastiffs, Mastiff Rehoming Program, Mastiff Rescue South Atlantic Region, Mountain States Mastiff Rescue, New England Mastiff Rescue, Old English Mastiff Trust Foundation, Operation K9 Rescue
Web Rings
Mastiff Breeders Webring, Mastiff Club Of America WebRing, Mastiff Showdog Web Ring, Mastiff Web Ring, The Mastiff Web Ring
American Kennel Club Breed Standard
Description used to judge Mastiffs in AKC shows.
Doc Rob's Library of Mastiff Medicine
Articles written by Robin M. Smith DVM. Many are Mastiff specific.
Dvf Mastiff.net
Provides pictures and information on the breed including health, titles, standard, information on progessive retinal atrophy, and free litter announcements.
Erieside Mastiffs
Features information on their breeding program, pictures, pedigrees, and health issues.
Mastiff Information
Information about Mastiff temperaments and links to lots of Mastiff related sites.
Mastiff Web
Features information on the breed including history, standards, temperament, training, chat, message board, art, pictures, programs, and games.
Origins of the Mastiff
Origins of one of the four main categories of dogs, dingoes, northern breeds, Greyhound and Mastiff, as proposed by Richard and Alice Fiennes.
Therapeutic Companionship
Article in Lubbock Avalanche-Journal 1997 about some Mastiffs who are therapy dogs.
UK Mastiff
A UK based meeting place and information exchange for people interested in the English Mastiff.