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

Bullmastiffs Online
- Breed history, care and training tips, message board, health articles, diet recommendations, and a list of breeders.
- http://www.bullmastiffsonline.com/

Bullmastiff Information on the Internet
- Links to breeders, breed web sites, rescue, discussion lists, questions to ask a breeder, and hip dysplasia.
- http://www.bullmastiff.org/

What the Prudent Buyer Should Know
- Questions to ask breeders, how to adopt a Bullmastiff, owner responsibilities, message board, and a referral list.
- http://www.bullmastiffinfo.org/