Web Share API
This specification defines an API for sharing text, links and other content to an arbitrary destination of the user's choice
Web Content Accessibility Guidelines 2.1
Discover the new WCAG set of guidelines (or 17 success criteria) presented in a comprehensive manner by Alan Dalton.
Animate.css
Fluidity
Monitor progress of long running php scripts with html5 server sent events
Camera and Video Control with HTML5
This Is Responsive | Tips, Resources and Patterns for Responsive Web Design
Patterns, resources and news for creating responsive web experiences
A Selection Of Web Apps That A Web Designer Should Know About
Get Your Form On: Modern Web Forms Tutorials
Modern Web Development
Guidelines for Building Touch-friendly Sites
It’s Curtains for Marital Strife Thanks to getUserMedia
Back to basics: how to code an HTML5 template
Pushing Updates to the Web Page with HTML5 Server-Sent Events
Transiting from native iOs apps to webapps: 5 top design patterns
All The Cheat Sheets An Up To Date Web Designer Needs: CSS3, HTML5 and jQuery
Using HTML5 to Determine User Location
Responsive Design, Responsively Illustrated
First, Understand Your Screen
HTML5 Form Field Validation with CSS3
Responsive Design Essentials: Look Great on any Device
60 Useful Web Developer Cheat Sheet Collection
6 Thinks I Learned About Print Stylesheets From HTML5 Boilerplate
Struggling with Semantics
Diving Deeper into HTML5 Offline Browsing
Pushing and Popping with the History API
25 Useful Html5 Cheat Sheets and Tutorials For Web Developer
Bring Your Forms Up to Date With CSS3 and HTML5 Validation
Internet Explorer 10 Developer Guide:CSS
Exciting reference, shame all properties are still vendor prefixed. "Internet Explorer 10 Developer Guide:CSS"
How to Embed Video Using HTML5