You have to learn the mechanics first. Although it is becoming much easier to create pages with some of the tools that are available, it still eventually becomes necessary to know a little about what it going on behind the scenes. And that means learning HTML. In addition to these tutorials, we really recommend the book "Learning HTML in a Week", and "More Learning HTML in a Week" by Laura Lemme.

A Beginner's Guide to HTML
The Hypertext Madness of Laurence Simon
Crash Course on Writing Documents for the Web
HTML Basics - a chapter from "Teach Yourself Web Publishing with HTML in a Week" by Laura Lemay
The Bare Bones Guide to HTML
Case Western Reserve Introduction to HTML
Absolut Sites HTML Guide

This should get you well on your way towards understanding the basics. Don't forget that a great way to learn is to select "Document Source" under the "View" menu. You can see how some of your favorite pages are put together.

For even more references, you can check out these "Collections of collections" sites.

Yahoo's Collection of HTML Guides
NCSA's List of Online Guides to Learning HTML