An essay on W3C's design principles - "Why doesn't HTML include tags for style? Why can't you put text inside SMIL? Why doesn't CSS include commands to transform a document? Why, in short, does W3C modularize its specification and why in this particular way?" - all these questions answered, and more!Tags: Web; Standards; Essay; 

Online javascript beautifier - Un-minify JavaScript code, or just format it nicely.Tags: Javascript; Utility; 

jsdoc-toolkit - Project Hosting on Google Code - A Java tool for automatically creating documentation from comments in your JavaScript code.Tags: Javascript; Documentation; Tools; 

QUnit - jQuery JavaScript Library - A library to make unit testing easy in JavaScript.Tags: Javascript; Testing; Tools; 

Web Designer's Checklist, Web Designers' Browser Support Checklist : FindMeByIP - Chart showing the HTML5 and CSS3 capabilities of all the major browsers.Tags: HTML5; CSS3; Reference; 

Progressive enhancement: pure CSS speech bubbles – Nicolas Gallagher — Blog & Ephemera - Some interesting techniques using generated content with the :before and :after pseudo classes.Tags: BlogPost; CSS3; Tips; 

html5media - Project Hosting on Google Code - Make HTML5 <audio> and <video> work in any browser simply by including a script tag.Tags: HTML5; Javascript; Library; Media;