software packaging system.
+<a href="http://win-get.sourceforge.net/">win-get</a> - package manager for
+<a href="http://chocolatey.org/">chocolatey</a> - “Chocolatey NuGet is a
+Machine Package Manager, somewhat like apt-get, but built with Windows in
+<a href="http://mxcl.github.com/homebrew/">Homebrew</a> - “The missing
+package manager for OS X”. Open Source.
+<a href="http://www.macports.org/">MacPorts</a> - “an open-source community
+initiative to design an easy-to-use system for compiling, installing,
+and upgrading either command-line, X11 or Aqua based open-source software
+on the Mac OS X operating system”.
<h2 id="scm">Version Control Systems</h2>