HTML5 Rocks - A resource for open web HTML5 developers.
HTML5 Demos and Examples. Dive Into HTML5. HTML 5 Cheat Sheet (PDF) - Smashing Magazine. HTML5 Doctor, helping you implement HTML5 today. Embed Audio and Video in HTML 5 Pages. In Lesson 1 and Lesson 2 of our HTML 5 tutorial, we looked at some new structural tags you can use to help eliminate the “div-soup” of HTML 4.x layouts, as well as some other semantic tags to help give your pages easy-to-parse dates, metadata and captioned images.
Now it’s time to take a look at what might be the most-hyped part of the HTML 5 specification — the audio and video tags. Video’s a tough nut to crack. When can I use... Support tables for HTML5, CSS3, etc.