HTML5 Advent Calendar, Polyfilling, Game Theory 101, and more…

HTML5 and CSS3 advent calendar 2011 edition.

19 creative computer animations to inspire you.

Polyfilling the HTML5 Gaps With JavaScript, slides from Addy Osmani's FITC talk.

Interactive CSS3 lighting effects.

Ember (formerly SproutCore 2.0) is a JavaScript framework for creating ambitious web applications.

HTML5 and CSS3 without guilt.

Animate.css is a bunch of cool, fun, and cross-browser animations for you to use in your projects.

Game Theory 101: Game theory made easy.

An introduction to object oriented CSS (OOCSS).

Learn almost anything for free at Khan Academy.