Darwin Developer Documentation Save
Programming in the Darwin kernel and information on the differences between Darwin and other BSDs.
http://developer.apple.com/documentat...   

DarwinPorts Save
Goal is to provide an easy way to install various open-source software products on a Darwin, Mac OS X, FreeBSD, or Linux system.
http://darwinports.opendarwin.org/   

Fink Save
A package manager for Darwin based on the Debian apt-get set of tools. 2900+ ports listed.
http://fink.sourceforge.net/   

Getting Started With Darwin/x86 Save
A helpful guide to getting and installing Darwin on an x86 system.
http://darwin.monkeyvoodoo.net/   

Hexley the Platypus Save
The mascot of the Darwin OS.
http://www.hexley.com/   

Open Software in a Commercial Operating System Save
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.
http://www.mit.edu/people/wsanchez/pa...   

OpenDarwin Save
A fork of Darwin with the intention of making it easier to commit code and to involve the community in ways difficult with the main Apple branch.
http://www.opendarwin.org/   

The Challenges of Integrating the Unix and Mac OS Environments Save
A paper on the design issues Apple faced when they ported the Mac OS to a semantically different Unix base (Darwin).
http://www.mit.edu/people/wsanchez/pa...   

The GNU-Darwin Distribution Save
A Unix distribution which focuses on the porting of free software to Darwin and Mac OS X.
http://www.gnu-darwin.org/   

XDarwin: X Windows on Darwin and Mac OS X Save
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.
http://www.xdarwin.org/   

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