These are some of the sites I have found useful as I continue to learn about HTML5.

• A Book Apart - HTML5 (I have a copy of this book and consider it one of the most concise references and quick start guides I have encountered)
• http://diveintohtml5.org/ (I have a copy of this book and refer to it often.
• http://www.html5rocks.com/ (Google site covering alot of information). Don't forget to check out the interactive presentation.
• http://simon.html5.org/html5-elements (listing of HTML5 elements and attributes).

Humor

• Is HTML5 ready yet?
• Is HTML5 ready?

Likewise, these are sites I have found helpful in learning about CSS3.

Of course, SVG has been around for quite some time. I have tried to keep the most current references here.

There are many useful sites which I can include here. Obviously, this page is a work in progress.

• Conformance checker at the W3C site. (http://validator.w3.org/)