THE BEST OF THE BEST
and except for iStockphoto, all are FREE - really!

TUTORIALS

W3 Schools - describe themselves as the largest web developer's site on the net - a real treasure trove of tutorials and reference materials for both beginners and advanced web developers - well organized and searchable

CONTENT

Open Clip Art Library - thousands of graphics all in the public domain
FontFile - hundreds of free fonts to decorate your text
Freesound - thousands of sound bytes, for when graphics and text are just not enough to convey your message
iStockphoto - photos, illustrations, clipart and more - You need to sign up for an account and pay for graphics you actually use, but it is a good collection, nevertheless.

SCRIPTS

Dynamic Drive - free DHTML and Javascripts sorted by category
Java Boutique - java applets for special effects
JavaScript Source - thousands of free cut-and-paste javascripts

WEB DESIGN SOFTWARE

Nvu - complete WYSIWYG web authoring program
GIMP - image editing program for working with photos and other graphics
Inkscape - scalable vector graphics drawing program
WordPress - blogging and personal web publishing platform

TEMPLATES

Open Source Web Design - lots of free templates to help with the layout of your pages
Open Web Design - more free templates - This site seems to be a spin-off of the previous one. Both are worth looking at.

This web site is created and run entirely on Open Source software.