Animate.css
60 Useful Web Developer Cheat Sheet Collection
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"
HTML5 Video Player | VideoJS
Adactio: Journal—Sea change
Responsive design
Mobile HTML5 Boilerplate
Sencha - Sencha Animator
Create CSS3 Animations with Ease
Web Directions South 2010 Opening Titles
RT @stop: Mind blown. Bar raised. @themaninblue's title sequence for WDS, using HTML, CSS, and JS: (view in Chrome)
Ultimate List of HTML5 and CSS3 Tools | Admix Web
great tools that can help you to master these new features of both HTML5 and CSS3
ProtoFluid - HTML5 and CSS3 Web App Prototyping
Test your @media queries and web app on various screen sizes
10 tips for designing mobile websites | These Days Labs
Time Zones
RT @petebw: really awesome HTML5 timezone app for iPad (and compatible desktop browsers) #html5 #ipad
Apple - HTML5 and web standards
Demos to show how the latest version of Apple’s Safari web browser, new Macs, and new Apple mobile devices all support the capabilities of HTML5, CSS3, and JavaScript
Hedwig
SproutCore Touch for iPhone and iPad
HTML5 presentation
Online presentation of HTML5, CSS3 and Javascript's new APIs - brilliant!
HTML5 Readiness
Compare browser support of HTML5/CSS3 features
Proudly Announcing: Modernizr | FarukAt.eş
Modernizr is a small JavaScript toolkit that uses feature detection techniques to determine whether or not the current browser is capable of any of the following features from CSS3 and HTML5.