Local FTP site - Synthesis packages, other related software and binaries for Silicon Graphics machines.
MIT FTP Site - Home of Csound. HRTF measurements and some audio applications.
CCRMA FTP Site - Lots of applications for NeXT machines, some Mac stuff. Stephen Travis Pope's MODE software, Spectral Modeling Synthesis Package, etc... Lots of fun!
IRCAM FTP Site - Utilities for Mac, PC & UNIX. Some algorithmic composition software.
Norwegian network for Technology, Acoustics & Music FTP Site. - Great Site! Good Programs like Ceres and Mix for SGI. Applications for Mac, PC & Unix.