American Society for the Preservation of the Neapolitan Mastiff - Dedicated in the promotion, and preservation of the breed. Historical pictures, breed history and standard, organization information, membership application, news, and a calendar of events. - http://www.aspnm.org/
The Neapolitan Mastiff Club United Kingdom - History and standard of the breed, code of ethics, show schedules and news, rescue contacts, and tips for new owners. - http://www.theneapolitanmastiffclubuk.com/
Mastino Napoletano Club of New Ssouth Wales - Features information on shows in Australia, and information on health, breeders, items for sale, and club membership. - http://www.mastinoau.com/
Garden State Neapolitan Mastiff Club - New Jersey club offers membership and show information, photographs, forums, and news. - http://www.gsnmc.com/
United States Neapolitan Mastiff Club - Breed and club information, updates on shows and events, news, and health articles. - http://www.neapolitan.org/