Please share good sources. I’ll add the most useful sites to this page.
- HTML5 - Edition for Web Developers - The focus of this specification is readability and ease of access.
- Dive Into HTML 5 seeks to elaborate on a hand-picked Selection of features from the HTML5 specification and other fine Standards.
- HTML5 Doctor - a resource for people who want to learn more about the hows and whys of implementing HTML5.
- HTML5 Watch - a Tumblr blog by Neven Mrgan collecting HTML5 and CSS3 links.
- HTML5 Reset - A lightweight template for your HTML5 projects.
- jQuery for Designers - Learn how easy it is to apply web interaction using jQuery.
- jQuery Fundamentals - With contributions by James Padolsey, Paul Irish, and others.
Misc tools and resources
- htaccess tester - Test your .htaccess rewrite rules.
- humans.txt - Create a TXT file that contains information about the different people who have contributed to building your website.
- Functionn shares high-quality open source resources for web developers and designers.
- Six Revisions is a website that publishes practical and useful articles for designers and web developers.
- Simurai - Experimenting with the cutting edge.
- 24 Ways is the advent calendar for web geeks. Each day throughout December we publish a daily dose of web design and development goodness to bring you all a little Christmas cheer.
- Follow @smashingmag on Twitter - Vitaly posts a lot of interesting links besides Smashing Magazine content.
- Make Awesome Web - A blog very similar to this one, and therefore very cool indeed.