HTML5有哪些新功能？ - http://slides.html5rocks.com/
HTML5test - http://html5test.com/
Can I use - http://caniuse.com/ (https://github.com/Fyrd/caniuse)
HTML5 Please - http://html5please.com/
CSS3 Please - http://css3please.com/
Modernizr - http://modernizr.com/
Yeoman - http://yeoman.io/
EcmaScript5 - http://yanhaijing.com/es5/
Closure compiler - https://github.com/google/closure-compiler
Compatibility Detector - https://code.google.com/p/compatibility-detector/
The CSS3 Test - http://css3test.com/
The Web platform: Browser technologies - http://platform.html5.org/
Front End Collect - https://github.com/foru17/front-end-collect
9 个基于JavaScript 和 CSS 的 Web 图表框架 - http://bbs.html5cn.org/thread-6621-1-1.html
http://html5.org/
http://www.whatwg.org/
http://www.html5rocks.com/en/resources
http://www.webtoolkit.info/
正则表达式工具: