Free HTML Tutorials
HTML Tutorial at W3Resource
This covers all the basics of HTML 4.01.
HTML Tutorial at html.net
This HTML Tutorial will give you an easy, yet thorough and correct introduction on how to make websites. The tutorial starts from scratch and requires absolutely no prior knowledge of programming.
W3Schools HTML Tutorial
Tutorial site from W3Schools that covers just about everything.
HTML Tutorial at tutorialspoint.com
This is a tutorial and quick reference for HTML.
NCSA Beginner's Guide to HTML
A starting point to understanding the hypertext markup language used on the World Wide Web.