Apple

http://video.google.com/videoplay?docid=-4782817775120383631# Birds descend on a tree.
http://news.cnet.com/2300-1016_3-6090070.html How to run Windows apps on a new Intel Mac.

http://www.mexicanpictures.com/headingeast/2006/06/motion-sensing-and-isight-hacks-on-mac.html All of the programs that take advantage of the motion sensors in the latest Mac laptops, very cool.
http://www.micom.net/oops/ The Oops list of crashed vehicles.
http://eepybird.com/dcm1.html Another Diet Coke and Mentos video.

http://video.google.com/videoplay?docid=-4134446112378047444# This is Bill Gates talking about a demo of the next version of Windows, called Vista, only the screen has been replaced with MacOS X to show that the competition already has all of the features.
http://docs.lucidinteractive.ca/index.php/Cracking_WEP_and_WPA_Wireless_Networks A guide to cracking the passwords on WEP and WPA encrypted wireless networks.

http://www.afterapple.com/adam-knight/blog/2006/05/applecared-my-life-inside-apple-and-applecare A blog post of a guy's reflections about working in Apple's support division.

http://www.mikeash.com/?page=software/gpulife/index.html A MacOS X screensaver which runs the game of live in a OpenGL shader, which means that the entire screen is being drawn by the graphics card. You can use this as a sort of benchmark for Mac graphics cards.
http://www.spikedhumor.com/articles/19017/Pacman_Running_Around_Library.html Pacman takes a trip to the library.

Gil's LotD
http://techmanifesto.com/archives/2005/07/23/7-ways-to-turn-your-pc-into-a-mac/ How to turn your PC into a Mac

Gil's LotD
Gil will be in Chicago for the next couple of days in the national Academic Decathalon tournament, so if you don't get LoTD for a day it should be back the next.
http://www.techfreakz.org/fishmon/ Putting fish behind your screen
http://kernelthread.com/software/ams2hid/ The Apple sudden motion sensor- it detects when your laptop has been dropped or thrown, and uses that to protect your data

Gil's LotD
http://serc.carleton.edu/NAGTWorkshops/visualization/collections/tsunami.html maps designed to help people visualize tsunamis
http://www.podbrix.com/ Lego and Apple combined. What more can be said?

Gil's LotD
http://www.acme.com/heartmaker/ This is a random candy heart generator page.
http://www.kernelthread.com/mac/oshistory/ A lengthy history of the Macintosh operating systems.