
Mattie I have said it before and will again. It is not where a puppy is advertised but how it is bred. Mine is a numerically small breed and pups are sometimes feast or famine, or there is an imbalnace of sexes, and advertising is occasionally necesary to home the odd puppy or two. Most people use the specialist canine publications, but in the case of the weekly ones they are not widely available to the general public that are looking for a pet, but subscribed to by breeders and those who know how to source a pup via breed club etc. If bona fide breeders shun the local press and free ads, surely this leaves the potential pet buyesr entirely at the mercy of the commercial breeder, puppy farmer, or ill informed pet bitch breeder? Most people searching for a pet will look in the papers.
The Monthly mags work two months or so ahead, so a pup that is of homing age that is still available would not be advertised for a long time. I have found a few homes over the years by advertising locally, and they have been every bit as good or better than those I have had through the breed club (perhaps because you vet them twice as much :D, and it is easier to do so locally).
Perhaps it is different in numerically strong breeds but homes can be from one end of the country to the next, as there is rarely a breeder conveniently in the area that a potential home is located.
Even the best known kennels advertise sometimes, especially when most breed only occasionally, so don't always have puppies and enquiries on the go.
With any kind of advertising in my breed an advert may only yield one enquiry or so, if any, so it is best to advertise quite widely to secure just one home.
I never like to take more than two bookings for each sex in a planned litter in advance, as it can lead to disappointment, with perhaps no-one to pass them on to. Once the pups are born then they will be advertised.