HTML

Books about HTML

CSS Mastery: Advanced Web Standards Solutions

Websites

• About.com:Web Design/HTML
• HTML Dog, "HTML and CSS Tutorials. And Stuff. Welcome to HTML Dog, the web designer's resource for everything HTML and CSS, the most common technologies used in making web pages."
• HTMLville.com
• HTML Code Tutorial
• HTML5 Gallery has two primary aims, the first is to showcase sites that use HTML5 for markup, so that we can see how people have interpreted the specification and how they’ve implemented it. This leads me on to the secondary aim which is to help people learn about html5 and how it should be used and how to implement it.
• Sitepoint HTML Reference