BUZZ

A Javascript library that allows you to take advantage of the new HTML5 audio element

Creativejs

The very best of creative JavaScript and HTML5

Presswork

A HTML5 WordPress framework for designers, developers and publishers

Mosaiqy

Neat jQuery plugin (compatible with HTML5) for viewing and zooming photos

GridLess

An awesome HTML5 and CSS3 framework for making responsive, cross-browser websites with beautiful typography.

Bones - WP Framework

A bare bones Wordpress Development themework that has been lovingly crafted

HTML5 Dashboard

Fantastic demo of a HTML5 powered Dashboard, not to be missed

HTML5 Piano

A experimental web app developed with HTML5, CSS3 and JavaScript

Initializr

 A simple tool to help you getting started with an HTML5 project