I would be amazed it this has not already been posted here, but I did appropriate searches and couldn't find it. So...
Andrew Cram, creator of
Frequent Flyer Resources, has created a huge
list of merchants in Australia at which you can earn points from various credit cards that convert to QANTAS points. The list is most useful because it is in alphabetical order of stores.
Andrew lives in the U.S. He has created a wonderful table of merchants with the number of miles or points offered for purchases from them by our large number of shopping portals in the U.S. I do not know why he has done a similar thing for Australia (perhaps he wants to move across the ocean), but please support his effort by sending him polite updates, as we do in the U.S. for his U.S. table. He is providing an extremely useful service for us in the U.S., and will no doubt do the same for you.