One Page Apps I Actually Use
New Adventures in web design
Free HTML / CSS for type & palette proposals June 24 2011
Sencha Touch The First HTML5 Mobile App Framework
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
Now You See Me
Custom Scrollbars in WebKit
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
BoxShadows
Showcase of Outstanding Responsive Web Designs