Maximus said in
rec.pets.dogs.breeds:

It is the internet age and most if good breeders now have
websites with contact info.

Mostly wrong in my experience. As I wrote, good breeders have
no need to advertise. The litters are reserved often before
conception, certainly before birth. If there's an unforeseen
circumstance, like a buyer backing out, there's a waiting list
or word of mouth.

I know a number of breeders, directly and second-hand, who
only post announcements and brags. Any mention of an upcoming
litter is usually itself a brag: "So'n'so being bred to
such'n'such and we hope for this'n'that." When you contact
them for a puppy, you'll be told that there maybe a future
breeding in a year or so. You might be told that first
opportunities go to current owners.

Good breeders want some personal contact, or at least some
background (friend of a friend?) on who is taking their dog.
Advertising on the web is counter to these goals.

If they have a phone number listed then call them.

That I'll agree with. If they have a website, contact them.
If you don't hear back quickly, don't assume they're bad
breeders. First, consider that they may not check email
often. Or, they may be away showing or trialing their dogs
(!). Or, maybe they get way too much email. Or, reconsider
your approach.

What I'm saying is that good breeders don't advertise dogs for
sale. Of course, there are always exceptions. Do you have an
example web site in mind?

--
--Matt. Rocky's a Dog.