HTML5/CSS3/JavaScript
- HTML Working Group
- WHAT Working Group
- HTML5 Test
- HTML5 Reference (w3schools)
- Dive into Html5 (M. Pilgrim)
- html5rocks.com
- caniuse.com
- html5demos.com
- chromeexperiments.com
- Mozilla Developer Network
- Adobe: theexpressiveweb.com
- dev.opera.com
- css-tricks.com
- CSS3 Reference (w3schools)
- css3.com
- css3.info
- hakim.se - Web experiments
- html5doctor.com
- html5please.com
Javascript APIs
- JavaScript Reference (Mozilla.org)
- JavaScript-Garden
- jsDOM - krook.org/jsdom
- jQuery Quick API Reference
- Javascript Reference (w3schools)
- jstherightway
Javascript Libraries
Javascript Frameworks
Toolkits