ActiveDeveloper
Interactive runtime Objective-C IDE for Windows, Mac OS X, OpenStep NIS.
url: www.interactive-technology.com/
Cocoa
Apple's Objective-C based programming environment for Mac OS X.
url: developer.apple.com/cocoa/index.html
gnome-objc
CVS home of Objective-C bindings for Gtk+, GNOME.
url: cvs.gnome.org/bonsai/rview.cgi?cvsroot=/cvs/gnome&...
GNUstep
A GNU project to write a completely OpenStep compatible programming environment based on Objective-C, with intentions to also maintain Mac OS X compatibility.
url: www.gnustep.org/
The MiscKit Frameworks
A free collection of Objective-C objects useful to Rhapsody, OPENSTEP, GNUstep, and NeXTSTEP programmers.
url: www.misckit.com/
OpenStep Specification
A copy of NeXT Computer's OpenStep Specification. This is the specification that both Cocoa and GNUstep are based on.
url: www.gnustep.org/resources/OpenStepSpec/OpenStepSpe...
Portable Object Compiler
A preprocessor that will convert Objective-C into regular C.
url: users.pandora.be/stes/compiler.html
