“Broken Windows”:http://daringfireball.net/2004/06/broken_windows is about why users using Windows are flooded with virusses and spyware and Mac users are not.
“Making An Operating System Faster”:http://www.kernelthread.com/mac/apme/optimizations/ gives tips on how to optimize OS X.
“Desktop Manager”:http://wsmanager.sourceforge.net is an open source virtual desktop manager for OS X. It allows you to have multiple desktops and quickly switch between them, I use it all the time on my iBook.
“Webbased Mac System 7.0”:http://myoldmac.net/webse-e.htm let’s you try OS 7.0 in your browser (using flash).