There’s no point in reinventing the bone when there are already fantastic authority sites in each country for dog breed information:

Australian National Kennel Council – Includes Australian breeds like the Kelpie.

American Kennel Club – The comprehensive list of approved breeds in the US. Great for formal definitions and characteristics of breeds. Includes national breed clubs.

DogBreedInfo – Also good on breed content, with a little more warmth. Has a “Choosing a breed” quiz that came up with some lesser known breeds for me.