1. Devine Farm (http://devinefarm.net/): This webpage was put together by a long time Mastiff breeder. It contains tons of articles and info on Mastiffs, health, breeding, training and so much more. All the information was provided by those involved in the Mastiff fancy, many being long time, experienced Mastiff breeders. There is a specific page that lists upcoming litter announcements as well as a stud dog listing. I always recommend that people start their search on this webpage.
2. Mastiffs.org (http://mastiffs.org/): This webpage and database was put together by Goldleaf Mastiffs, who have been in the Mastiff breed for a very long time. They maintain a message board and forum where you can ask questions, a stud dog listing, there is a litter announcement section on their forum, and last but certainly not least there is a very nice listing of Mastiff breeders, some of which it even indicates whether or not the specific breeder does testing on their breeding stock. Last time I was on this site some of the links to the breeder webpages were broken, but a fair number are still active and it’s a great resource.
3. The MCOA breeder referral list: The Mastiff Club of America will send you a listing of their member breeders to begin your search. The list does cost a few dollars to mail, and I have heard from some that it is not that great of a resource, but if you are wanting all the options available to choose the best possible puppy it is an option to research into.
4. Finally, there are several Mastiff forums I recommend checking out. All have a plethora of information regarding everything Mastiff. These places are great to network with other Mastiff owners and breeders and ask for advice and referrals onto breeders. Several of the forums I am active in are The World Mastiff Forum (http://www.worldmastiffforum.com/), Mastiff Forum (http://www.mastiff-forum.com/), Mastiff Online Community (http://www.mastiffonlinecommunity.net/), and Mastiff Chat (http://www.mastiffchat.com/).
One tip I have when contacting a breeder is to call them. So many people what to email or contact through a webpage, but in all honesty a lot of breeders have webpages, but don’t update them regularly and sometimes those email links get broken or emails don’t get checked. If you really are interested in a puppy from someone pick up the phone and talk directly to the person.
In closing, remember that you as a puppy buyer retain the sole responsibility of verifying all health testing has been completed on the breeding stock of a breeder. These lists and resources are simply a jumping off point to begin your search.