See also:

• Computers: Software: Operating Systems: Microkernel: Mach  (39)
• Computers: Software: Operating Systems: Unix: BSD: FreeBSD  (73)
• Computers: Software: Operating Systems: Unix: BSD: NetBSD  (49)
• Computers: Software: Operating Systems: Unix: BSD: OpenBSD  (97)
• Computers: Software: Operating Systems: Unix: Macintosh  (9)
• Computers: Software: Operating Systems: Unix: Open Source  (6)
• Computers: Systems: Apple: Macintosh  (975)

• Apple Developer Connection: Darwin Releases - Official page with downloads of the various Darwin releases and developer tools.
• Darwin Developer Documentation - Programming in the Darwin kernel and information on the differences between Darwin and other BSDs.
• Fink - A package manager for Darwin based on the Debian apt-get set of tools. 2900+ ports listed.
• Getting Started With Darwin/x86 - A guide to getting and installing an old (version 6) Darwin on an x86 system.
• The GNU-Darwin Distribution - A Unix distribution which focuses on the porting of free software to Darwin and Mac OS X.
• Hexley the Platypus - The mascot of the Darwin OS.
• XDarwin: X Windows on Darwin and Mac OS X - A general overview of the project to bring XFree86 (X11 server) to Darwin and Mac OS X as well as pointers to download and mirror sites.

• The Challenges of Integrating the Unix and Mac OS Environments - A paper on the design issues Apple faced when they ported the Mac OS to a semantically different Unix base (Darwin). (June 19, 2000)
• Open Software in a Commercial Operating System - A paper written by Wilfredo Sánchez, the then Open Source Engineering Lead at Apple, about the use of open source in commercial software such as Mac OS X Server. (June 10, 1999)