Page Visibility API - Have I got your attention?
Fortunately, the new Page Visibility API lets your app discover if it's visible or not.
Contra in HTML5 + Web Audio API
Thanks to the power of GWT, HTML5, and the Web Audio API we can build the originator of everyone's favorite cheat code, Contra.
navigator.onLine in Chrome Dev channel
With the offline APIs in HTML5, there's no excuse not to provide a flawless offline experience for users.
Welcome to updates.html5rocks.com
In an effort to info developers quicker, we've built this "HTML5 Update Stream" to highlight the cool things worth sharing