OS X Links

Also, there's the older MacCraziness page.
(Yes, this resource is going to get a good overhauling sometime.)

Independent Sites

4 OS X
AFP548
AppleTechs
Apple-X Network
CommandLineMac
Futur Mac
Hacks: Mac
Infinite Loop
MacAddict
MacEnterprise
MacFun
Mac Geekery
Mac Indie
MacLive
MacMerc
Mac Night Owl
Mac NN: OS X
Mac OS X Guru
Mac OS X Hints
Mac OS X Net
Mac Security Org
Mac Write
MacYourself
MacZealots
NonStopMac
OS X Audio
OS X Daily
OS X Guide
OS X Page
OS X Zone
OSx86 Project
RbCafe
ResExcellence
RootPrompt: Mac
StepWise Server
WorkingMac

Blogs

Adventures in Cocoa
briksoftware
Caffeinated Macs
Google Mac Blog
iAppblog
Internet Security Mac
Long Pointers
Mac For Translators
Mac OS X Pragramming
Mac Stuff
MacTechNotes
Mullery
Oops Cocoa Blog
OS X Blog
OS X Code
Planet Cocoa
ReelSmart
Santaduck
*Coder Blog
webgraphics

OSX Forums

AFP548
All Things Mac
appletalker
astmasters.net
Apple's Forums
AppleInsiders
Ars Technica Mac
BSD Forums
Entwicklerforum
Experts Exchange
hackint0sh
iDevGames Forums
MacFixIt
MacFora
MacGurus
MacMEND
MacNETv2
Mac Night Owl
MacNN
Mac Observer
Mac OS X.com
Mac OS X Development
Mac OS X Hints
Mac OS X Labs
Mac Talk Forums
Mac Underground
MacUser Forums
Mac User's Forums
Macintosh Webmaster
Mac World OS X
OnDeckTech
OSXUnderground
PinoyMac
Ronge > Cocoa
SE-Darwin
TSF Mac Security
Underground Mac
UNIX Forums > Apple
XDarwin Forums

OSX Software

Built for OS X (Apple)
C|net Downloads
Cool OSX Apps
File Avenue
5 Star Shareware
Free Mac App A Day
FreeMacWare
Freeware OS X
Freeware for Mac OS X
Handpicked Software
Huntsville MUG
Info-Mac HyperArchive
I Use This
Mac Aggregate Tracker
MacApper
Mac OS X Apps
Mac OS X on Intel
Mac OS X Shareware
Mac Games and More
MacGameFiles
MacMusic
MacScience
Mac Update
MacResearchSW
MacZOT
MyMac (Russian)
OS X Apps
OS X Freeware
opensourcemac
prMac
PureDarwin Project
Pure Mac
QL Plugins
ResExcellence
Sacapuce (French)
ScriptBuilders
Sofotex
SoftLookup
Softonic (Spanish)
SoftwareArchives
studiotoolz
thriftmac
Tucows
Version Tracker


Dashboard Widgets
Apple's List
DashboardWidgets
WidgetWorld

UNIX/Darwin
DonaldsonLab
Fink
GNU-Darwin
GNU Mac OS X
MacForge.net
Mac OS Forge
MacOS X Ports

Darwin/BSD

Advogato:Darwin
Darwin Man Pages
Darwin Tips
Debian GNU/Darwin
DonaldsonLab
Fink & X11
FreeBSD
FreeSoftware Archives
freshmeat
GNU-Darwin
Hexley's Home
NetBSD
NetBSD Packages
OpenBSD
OpenDarwin
OpenDarwin How-Tos
OpenDirectory
Proclus' Darwin Page
SE-Darwin
Setting up Unix
STOS Darwin
XDarwin
XFree86 on Darwin

Apple Sites

Darwin
Developer Docs
Developer Tools
Internet Developer
Mac OS X
Mac OS X Server
OS X Development
OS X Feedback
Sample Code
Troubleshooting

Resources

ADHOC
Advanced Programming
All The Quickies
Apple's Technical Notes
Atomic Learning
Automator World
CarbonDev
Certificates in Mail
Chinese Mac
CodeBeach
CodeFetch
Command Line list
Common Jaguar Problems
Configuration Notes
Crystallography on OS X
CS 193E
Custom Unicode Keyboards
Czech articles
Dashboard Resources
DD's Security Links
DiveIntoOSX
Computing using OS X
DAVLib
DIYMacServer
dtrace scripts
DZone Snippets > osx
easy Bioinformatics
Game Development
George's Mac Tips
GNUStep
Guide to Things UNIX
Hacking X
HEP Computing on OS X
iCalShare.com
Installing BIND
JSP & Databases
JSP for Macs
Key Bindings
'(Lisp Notes (OS X))
LocalVersion
Look4Mac
Mac/BetaGroup
Mac Boot Key Combos
Mac Dev Directory
Mac Developer University
Mac FAQs & Tips
MacForBeginners
MacInstruct
MacJava
Mac Java Community
Mac Law Students
macosx.com
Mac OS X Guru.net
Mac OS X Newbie Guide
Mac OS X Presentations
Mac OS X Routine Maintenance
Mac OS X Server Configuration
Mac OS X Server FAQ
Mac OS X Shortcuts
Mac OS X Speed FAQ
Mac OS X Tips
Mac OS X Tutorial (SFSU)
Mac OS X User's Guide
Mac Networking
Mac Reference Guide
MacScience
Mac Themes
MacShadows Knowledge Base
Mac Using Educators
MacWeb3D
Make. Mac. Work.
Magical Key Sequences
MOST Consultants Network
Multilingual Mac
NeXT Archive
NeXT Info Page
NeXT on OSXS
NFS on OS X
O'Reilly Mac DevCenter
ODBC on the Mac
OpenSource OSXS
OS X Basics
OS X FAQ
OS X Foundry
OS X Hax
OS X into NIS
OS X Tips & Tricks
OSXS 1.2 on Lombard
Novajo How-tos
PimpMySafari
Pine on Mac OS X
PowerPC overview
Project Omega
Py4iPod
PythonMac
QuartzCompositions
ScreenCastsOnline
Secrets
Setting up from Scratch
Subversion on Leopard
Sys Admin Self Help
Take Control Ebooks
TextSnippets > OSX
Tips and Docs
Topicdesk > OSX
Unix and OS X: Essentials
Unix for Beginners
A UNIX User's OS X Notes
Vortimac
Westwind's Reference
While Supplies Last
X Lab, the
Xgrid Intro
xmidi
Zope on OS X
Zope-MOSX

OSX Projects

Cocoa PSQL
Cocoa Units
DirectX OpenGL
Extendamac
GTK+ Quartz
GRASStep GIS
iHarder.net
Mac GNU PG
MacOS OpenSource
OpenStrip
MySQL Cocoa
PyObjC
QT Components
SourceForge
Tigris
Uzoo

Cocoa

Dev Sites:

Big Nerd Ranch
Cocoa at SourceForge
CocoaCheerleaders
Cocoa Dev
Cocoa Dev Central
CocoaDevHouse
Cocoa Lab
CocoaObjects
Late Night Cocoa

Resources/Docs:

Borkware Quickies
CATS - Cocoa Programming
CocoaBulider
Cocoa Code Examples
Cocoa Docs
Unofficial Cocoa FAQ
Cocoa Faqts
Cocoa Links
Cocoa Mailing Archive
Cocoa Notes
Cocoa Radio
Cocoa Search
Cocoa Starting Point
CocoaTraces
Cocoa X (French)
OS X Frameworks

Tutorials:

Deep Cocoa
Eden Math Calculator
Programming With Cocoa
Thee_Ice's Tutorials
Vermont Recipes

Objective-C

Apple's Obj-C Pages
Cetus Links
Cocoa Obj-C on OS X
GNU Obj-C Manual
IAQ about Obj-C
objective-c
Obj-C FAQ (HTML)
Obj-C FAQ (RTF)
Objective-C Memo
Obj-C Newsgroup
POC
Snipplr > Obj-C
Steve Dekorte: Obj-C
Using Objective-C++

Mailing Lists

Apple's Lists
CocoaDev
Mac Security.Org
Mac OS X Support
Omni's Dev Lists
The Mac Guy