General Computing
DNS Stuff
Sysadmin Day

Sun Microsystem Related
Sun Product Documentation - (docs.sun.com)
Sun Microsystems Patch Web Page
Sun Microsystem's BigAdmin Portal - System Administrator's Resources and Community
Blastwave.org - Blastwave is a collective effort to create a set of binary packages of free software, that can be automatically installed to a Solaris computer (sparc or x86 based) over the network.
Freeware for Solaris
Steve Winkloff's System Administration Links
SunHELP - SunHELP site grew out of an extensive collection of Sun and Solaris-related bookmarks I kept while working for TEXAS.NET. I started receiving so many questions and inquiries about Sun-related items that I registered a domain name and turned the Sun Q&A section of my web page into a stand-alone site in mid-1997. Since the, we’ve also added web-based discussion forums, mailing lists, and hosting for other related projects.
A New Twist on Teaching System Administration

SSH Related
SSH (Secure Shell) FAQ - Frequently asked questions
OpenSSH Mailing List

Windows OS
Windows 2000/XP Resources
DLL-files.com
The Elder Geek on Windows XP
Error Messages
Computing Tips
Process Library - ProcessLibrary.com is an invaluable resource for anyone who wants to know the exact purpose of every single process.

UNIX Related
NFS Error Messages

Linux Related
RPMfind - rpmfind is a program that will find RPM files on rufus for you
Linux Links.com -
The Linux Gazette - FAQs, submit questions
Linux Central - Linux store
The Linux Documentation Project - How Tos, Guides, FAQs

UNIX/Linux Related
GNU
Alec Muffett's Crack
Sending Email Attachments
SCSI FAQ
Satan and Computer Forensics
Freshmeat.net - freshmeat maintains the Web's largest index of Unix and cross-platform software, themes and related "eye-candy", and Palm OS software

Misc Computing
PDA related