Remember a time when every single software update you made to your computer's OS or applications required a complete reboot of the system? Computers are still far from perfect, but over at The Restart Page you can relive those annoying and constant operating system restarts of yesteryear, and appreciate how far things have come.
Everything from classic versions of OS X, to QNX, to every flavor of Windows you can imagine is there. Including Windows XP, which might be officially dead according to Microsoft, but will live on forever on this site. [The Restart Page via The Awesomer]