There are many resources available to you if you want to learn more about Bernese Mountain Dogs. These are just a few to get you started:
Bernese Mountain Dog Club of Canada

Bernese Mountain Dog Club of America

Rescue
Bernese:
Cavaliers:
Cavalier Pedigrees
https://cavalierpedigrees.com/
This site provides a searchable repository of Cavalier King Charles Spaniels, where you can view health tests that have been submitted, as well as digging into pedigrees.
Berner Garde Foundation:
http://www.bernergarde.orgBerner Garde is an incredible resource for researching pedigrees and health backgrounds for existing dogs, as well as for planning future litters. In this database, you can look up a dog, look at its parentage, including health tests, litters produced, titles, and owners. You can produce reports that tell you the Coefficient Of Inbreeding for a potential litter, and look at all relatives in the database. Although seeing a dog first-hand is invaluable for assessing its structure, movement and temperament, the Berner Garde database provides a wealth of supplementary information and background to broaden your Berner knowledge.
As a breeder, we send all our health results and litter information to the Berner Garde. As a Berner owner, you can submit information, photos, and any health tests to the database as well. The more information we have on all Berners, not just breeding stock, the better informed we can be in making decisions for the longevity and health of the breed as a whole.