HTML5 animation tool.

Example styles from Matt Hamm.

New Flash/HTML5 embedding method for YouTube vids.

By Paul Irish and Divya Manian.

Tim Connell outlines new HTML5 form elements.

Faruk Ateş explains how and why to use Modernizr.

Scott Gilbertson HTML5 video embedding techniques that work in most browsers, with fallback to object/Flash.

Shelley Powers’ thoughts on the proposed hidden attribute in HTML5.

Roger Johansson has made a test page for new HTML5 input element types. Mobile Safari, Safari and Opera are already recognising some of these.

John Nack on video workflow for serving H.264 via Flash and HTML5, and gripes besides.

John Gruber’s prediction on the future of video codecs is that H.264 will be the dominant encoding method and that Mozilla’s refusal to support it natively will render them less relevant, especially in the growing mobile space.

Dave Hall’s video element JavaScript for adding support to major browsers.

Roger Johansson’s links list of HTML5 documentation, the best place to start for a little light reading on the matter.

The next version of FF should equalize the functionality but for now it seems pretty close to WebKit.

H.264 and HTML5 video playback with support for Safari and Chrome. Firefox support and fallback to Flash are on the way.

Mark Pilgrim’s guide to using video with HTML5.

New HTML5, CSS3, DOM and SVG features in Firefox 3.5.

James Graham on how the section element in HTML5 affects page outlines in combination with heading elements.

Sam Ruby's history by selected quotations of the state of HTML5, with reference to XHTML2, ARIA and the WHATWG.

Steve Smith on using new HTML5 elements for structural markup on current pages. Requires some basic scripting to support IE.

Mark Pilgrim on character encoding in HTML5. Includes a brief overview, some useful links, and this recommendation from Joe Clark in the comments: "Unicode Explained by Jukka Korpela (for it is he) is very much to be read by anyone with an interest."