I agree - a website does not mean a good or great breeder. A lot of breeders may have websites but not always maintain them to what is current in their dogs. With Emma, I actually found her picture on Kijiji, where the breeder had advertised. I checked out her website, which is really a good one, with information not only about her, but also about her dogs. She gives the dog's predigree, testing results (MDR1, vWD etc) as well as the type of personality each dog has. Even with the ones she has up for sale, she does a really good job of giving a good description of the dog. She also links to the Sheltie Rescue in Southern Ontario, which not all websites I have checked out do, as well as giving information about the rescue to New Orleans that she and another Sheltie breeder undertook. A lot of breeders, if they do not have anything available, will gladly refer you to a breeder in your area who has puppies or older dogs available. What I really like about Emma's breeder is that she is upfront with what she expects (a secure fenced yard, completion of a puppy questionnaire), and what she provides (health guaranteed, lifetime support etc.
If you are looking at a website, take time to really look at it and never be afraid to ask for references of dogs the breeder has sold. Also check with the Kennel club, although registration is not a guarantee of a good breeder. I had the experience with Noah of a not so good breeder and with registration of him. Go for a home visit if possible.