Enables <video> tags in all major browsers.

Enable open web technologies in Internet Explorer

Compatibility tables for features in HTML5, CSS3, SVG and other upcoming web technologies

This is a list of known implementations of HTML 5 in web browsers. (It is incomplete, feel free to extend it.)

I'm not a fan of reset style sheets and I won't use this one. But this might be a handy reference, nevertheless.

The geo-location-javascript framework gives access to mobile web users location via javascript. It hides the underlying platform specific implementation through a simple unified interface.

To assist engineers in the development phase it provides a simple mechanism to simulate users locations and movements without being there in the real world.

Modernizr is a small and simple JavaScript library that helps you take advantage of emerging web technologies (CSS3, HTML 5) while still maintaining a fine level of control over older browsers that may not yet support these new technologies.