In Australia, there are several prominent clubs and organizations dedicated to the Deerhound breed. Here are some of the most notable ones along with their URLs:
URL: https://www.eilrig.com/the-deerhound-club-of-victoria.asp
URL: https://www.facebook.com/DeerhoundClub/
For more general information about the Deerhound breed, you can visit the Wikipedia page dedicated to Scottish Deerhounds, as they are often referred to as Scottish Deerhounds:
URL: https://en.wikipedia.org/wiki/Scottish_Deerhound