Ronald:
I would not term Royal Melbourne a links course. Most obviously, it's not right near the sea, and it is surrounded by trees, although the playing corridors are wide. Also, the terrain is gently hilly, as opposed to bumpy and undulating like true links courses generally are. True, the wind does come into play more, and the surface is generally firmer and faster, than some other sand-based courses like Walton Heath or Sunningdale or High Pointe, but to me that is not enough to cross the line to "links".
For that matter, neither does Shinnecock Hills qualify, in my mind.