Web Design

General HTML Info and Web Design Help

W3's HTML Guide and HTML Validator
HTMLHelp.com
Sizzling HTML Jalfrezi Guide (including their list of special HTML characters)
Website Tips (great web design references)
WebReference
HTML Goodies
NCSA's HTML Primer
iDocs HTML Guide
Cheat Sheet Roundup
gotAPI.com (handy references for HTML, CSS, JS, and even Perl, C, etc.)
Vitaly Friedman's Web Developer's Handbook
thePeoplesToolbox for Web Designers (also see their programmers tools
Programmer Meet Designer (sort of a want-ad for programmers and designers looking for help)

GUI Stuff (graphics)
MediaBuilder (graphics)
Boogie Jack's (web graphics and tutorials)
ButtonGenerator.com
Free Web Stuff's Button Generator
CoolText (free logos and buttons)
Iconlet (free icon search)

Keller's ASCII-to-HTML Table, Alan Wood's Unicode Characters, and Brett's Unicode Lookup

Cascading Style Sheets (CSS)

W3C's CSS2 Recommendation, Using Style Sheets in HTML, and Using CSS with Tables
Using CSS instead of Tables
Website Tips (links to great CSS tutorials/references)
W3C's Style Sheets in HTML
HTML-Help's CSS Guides
css-discuss wiki (tutorials on CSS and some great tricks!)
CSS Forums: SitePoint, DevShed, CSS Creator

eXtensible Markup Language (XML) and XML User-Interface Language (XUL)

XUL Planet (XUL reference and tutorials)

Netscape's Javascript Developer Central contains the very useful Client-Side documenation that's missing from their "newer" DevEdge Javascript page. The "document object model" presented in those Client-Side docs has been replaced by W3C's DOM, though.

Other Sites:

Javascript Bookmarklets

Javascript Examples:

A simple (and fairly useless) script that changes the background color of the current page (in some browsers):
A (more) useful drop-down list that will take you to other pages:
Create a pop-up window by clicking here:
And the ubiquitous image-flip script:

If you're looking for other information on the Internet (FTP, newsgroups, Gopher, etc.), check out our Internet page.