I believe there was a Microsoft, Yahoo or Geocities group for Amix a while back.
edit:
How about this?
http://www.amigaunix.de/downloads.html
What I'm looking for is the thirdparty stuff built on AMIX for AMIX. Like the (updated to 2.x, including binutils) GCC toolchain, any net utils, etc etc. We have some on amix.failsure.net but litamiga.epfl.ch was the main repository for all that.
I'm really curious if anyone bothered to expand the Open Look desktop for example with some actually beyond housekeeping apps, or if anyone managed to build an actually working thirdparty windowmanager.
Also, Mosaic.