Programming on Mac OS X.
- Cross development tools for OS X. Toolchains, USB, downloads, links, and forum.
- http://www.klingler.net

Perlidex 1.1
- Perl development environment for OS X. Features include debugging, executiing Perl Scripts, and installing modules. Offers downloads and registration.
- http://homepage.mac.com/goldfish1/Perlidex.html

OmniGroup Source Code and Frameworks
- Open Source frameworks and source code from OmniGroup that extend and enhance Apple's Cocoa APIs, simplifying the addition of common features such as find and replace and preference management. OmniGroup also provides advanced networking and HTML parsing
- http://www.omnigroup.com/developer/sourcecode/

Big Nerd Ranch
- Big Nerd Ranch offers intensive, head-down Cocoa programming courses taught by experts in a retreat-style environment. Also contains information on Aaron Hillegass' book "Cocoa Programming for Mac OS X".
- http://www.bignerdranch.com/

Mac OS X Programming: Getting Started
- Overview of basic Mac OS X programming resources available from Apple, including links to tutorials, developer tools and libraries, and documentation in PDF and HTML formats.
- http://developer.apple.com/macosx/gettingstarted/

AltiVec Programming
- Apple's main AltiVec/Velocity Engine site including an overview, sample code and various software libraries optimized for the G4.
- http://developer.apple.com/hardware/ve/

StepWise
- News stories, tutorials, and resources for programmers using-or wanting to learn more about- Mac OS X's Cocoa environmnent. Also delves into OpenStep and Web Objects programming.
- http://www.stepwise.com/

O'Reilly MacDevCenter
- Many articles and books on a broad range of Mac OS X developer topics.
- http://www.macdevcenter.com/

CocoaDev
- A community based Cocoa programming site with content submitted by programmers. Includes tutorials, code, and discussions.
- http://www.cocoadev.com/

Cocoa Dev Central
- Tips, tricks, and tutorials for the novice Cocoa developer.
- http://www.cocoadevcentral.com/

UNIX Porting Guide
- Apple's guide to porting UNIX software to Mac OS X. Includes information on Mac OS X's quirks and subtle differences.
- http://developer.apple.com/techpubs/macosx/Darwin/PortingUNIX/