I don't think I know any breeders that have a strong Facebook presence. They typically have better things to do than manage a Facebook and it really shouldn't be a big concern when looking for a dog. The more important factors should be looking for good health, temperament, parents' working/titling history and how well you actually like the parents. I loved what I saw from my pup's parents when I met them in person and I have loved what I've seen in my puppy. I have a feeling that's been way more important to me than any contact I've gotten from the breeder on Facebook. If you want attention/likes/comments on your future puppy, you'll find much more of that from a German Shepherd or general dog group. It's not the breeder's job to constantly watch Facebook and continue to validate a buyer's purchase with likes and comments throughout the dog's life.