One Page Apps I Actually Use
New Adventures in web design
Free HTML / CSS for type & palette proposals June 24 2011
8 Fast and Furious Tools to speed up your CSS and HTML Coding Time
Full Browser Width Bars
A Beautiful Boilerplate for Responsive, Mobile-Friendly Development
33 Essential Resources for Developers & Designers
HTML5 and CSS3 Snippets Every Web Developer Show Know
Pure CSS3 box-shadow page curl effect
5 Cool CSS Hover Effects You Can Copy and Paste
A new micro clearfix hack
An interesting new approach I wasn't aware of "A new micro clearfix hack" via @Ziteapp
Powerful New CSS Techniques and Tools
Enterprise HTML: Proven High Performance, Enterprise-Level and Scalable HTML Tips and Best Practices
Lovely examples of don'ts
Web Directions South 2010 Opening Titles
RT @stop: Mind blown. Bar raised. @themaninblue's title sequence for WDS, using HTML, CSS, and JS: (view in Chrome)
HTML5Rocks - Best Practices for a Faster Web App with HTML5
Google's tips and playground
HTML5 Doctor
Helping you implement HTML 5 today