UK Mastiff
- A UK based meeting place and information exchange for people interested in the English Mastiff.
- http://www.englishmastiff.org.uk/

Mastiff Breed Standard
- Official description of the breed as provided by the American Kennel Club (AKC).
- http://www.akc.org/breeds/mastiff/

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.
- http://people.unt.edu/tlt0002/mastiff.htm

Dvf Mastiff.net
- Provides pictures and information on the breed including health, titles, standard, information on progessive retinal atrophy, and free litter announcements.
- http://devinefarm.net/

Mastiff Information
- Information about Mastiff temperaments and links to lots of Mastiff related sites.
- http://www.oaktrees.org/mastiff.shtml

Therapeutic Companionship
- Article in Lubbock Avalanche-Journal 1997 about some Mastiffs who are therapy dogs.
- http://www.lubbockonline.com/news/022597/mastiffs.htm