When reselling or gifting a pre-owned Mac, it's convenient to ship it without any accounts, but with all updates and legally-included packages. This is actually quite simple to do. This process uses a number of well-known techniques, which are listed in the order that they are executed. Boot the Mac's original or retail Leopard Install DVD (Hold the 'C' key during startup). When selecting the drive during the OS X install, click the Options button and set it to 'Erase and Install' for a clean install.

Mac OS X only: Put any web site in your menu bar with the latest version of previously mentioned Fluid, a Mac application that turns any webapp into a standalone desktop application

'It is like I showed a chain saw to a early American colonist, and he said, "Can I cut down the tree without starting the engine? I don't like the noise. Maybe I can just bang it against the tree?"'

Good Lord. This is some poor design right here.

An easier way to create and launch Google App Engine apps, from the guys at Google. For Macs.

Mac OS X 10.5's Time Machine seems fairly revolutionary as far as automated backup goes - but the seeds of it have existed since Copland, the proto-Mac OS 8.

Filemaker's personal database. Looks and feels an awful lot like an iLife app; sort of like Filemaker without the intimidation or the huge pricetag.

Creates native OS X applications for a single site, or "single site browsers." Has a JavaScript API for creating dock badges, Growl notifications, and the like from a website.

Nu: it's like Lisp and Objective-C had a baby. A highly parenthetical baby.

"Inconsolata will be my first serious original font release. It is a monospace font, designed for code listings and the like, in print."

The Amazon MP3 store might be the first real, serious competitor to the iTunes Store - it's DRM free, encoded at a higher bitrate, AND has variable pricing that starts LOWER than the iTMS. Hmmmmmm.

A plugin for iPhoto that exports a bunch of photos to a .zip, .tar.gz, or .tar.bz2 archive file.

Cube is an open source multiplayer and singleplayer first person shooter game built on an entirely new and very unconventional engine. Cube is a landscape-style engine that pretends to be an indoor FPS engine.

Automator is a powerful technology for building custom workflows. But sometimes you need functionality that the existing actions don't provide—functionality that could be easily accomplished using the shell with a scripting language.

Software that works alongside iTunes.

Sort of like interactive language flashcards, but with several more features. OS X only.