Australian pre-decimal coinage and other unrelated stuff

triton.vg was the site of Australian numismatist Jon Saxton. Due to health issues he sold his collection in 2015 in Noble Numismatics auction 108. His son took over operation of his website (https://comp.os.cpm.narkive.com/9jm4ydfH/rip-jon-saxton-former-sysop-of-tesseract-rcpm#) but it ceased to operate some time in 2020 or 2021. An archive can be accessed at Web Archive.

For numismatists (especially those interested in Australia's predecimal coins) there is a catalogue of Australian coins and die varieties.

For CP/M enthusiasts there is Tesseract RCPM+.

Coin Curiosity and The Sandpit both have good references on Australian predecimal coins.