Internet Config
   home page for the standard internet configuration API
   http://www.quinn.echidna.id.au/Quinn/Config/

Macintosh source archive
   maintained by Matthias Neeracher
   ftp://sunsite.cnlab-switch.ch/software/platform/macos/src/HTML/Welcome.html

Mercutio MDEF
   Mercutio MDEF Home Page
   http://www.digitalalchemy.com/mercutio/

PIconServices
   PIconServices gives you ref-counted icons all the way back to System 7.5.3.
   http://www.pogma.com/source/developer.html

Piddle Backend
   Cross-platform cross-format 2-D graphics library for Python.
   http://www.strout.net/python/piddle/

Sailmaker Software Limited
   Provides various code libraries, including PPP control, PowerPlant classes, and an Excel plug-in framework.
   http://www.sailmaker.co.uk/index.html