These are some good on-line resources.

Tutorials

HTML Primer
HTML
HTML

Comprehensive HTML Sites

Web Monkey
HTML Goodies
Web Reference
Web Developer
W3 Schools
HTML

Colors

Color Chooser
Safe Colors
Color Words Page 1
Color Words Page 2

Extensive HTML Tag Reference

Index Dot HTML: THE Advanced HTML Reference

Quick HTML Tag Reference

Quick HTML Tag Reference

HTML Validation

HTML Validator

W3C

W3C

Explaination of W3C

About W3C

Graphics

Barry's Clipart World
Free Graphics
Clip Art Resource