Handy quick reference with summary of the HTML5 elements.
Interactive HTML cheat sheet for beginners. All HTML elements with descriptions, attributes, code examples & live previews
A once–weekly HTML5 and Web Platform technology roundup. CSS 3, Canvas, WebSockets, WebGL, Native Client, and more.
The feature detection library for HTML5/CSS3
Provides up-to-date browser support tables for support of front-end web technologies on desktop and mobile web browsers.
Web design and development blog that publishes articles and tutorials about the latest web trends, techniques and new possibilities.
A resource for open web HTML5 developers