transportation

http://itreviews.blogspot.com/2006/05/linuxs-boot-process-explained.html An explanation of the linux boot process.
http://sandhogproject.com/whatis/whatis.htmlA page about the sandhogs, miners who work deep underneat Manhattan.
http://www.roughlydrafted.com/Oct05.5Flaws.html Five architectural flaws in Windows solved in MacOS X.

http://www.youtube.com/watch?v=78Hz34M33sg Interviews with the guys who made the Real Men of Genius cartoons, very cool. Warning, mild swearing.
http://en.wikipedia.org/wiki/Leet_Township,_Pennsylvania Leet, PA.
http://vwisb7.vkw.tu-dresden.de/~treiber/MicroApplet/ A program that simulates traffic and common roadblocks.