HTML5 and ARIA Design Patterns is at .net magazine. It provides design patterns for main elements, navigation elements, sections, details, summaries, and figures and figcaptions. In each design pattern, the appropriate ARIA roles are shown.
The Tower Blog explains how they did the CSS3 transforms in their sidebar in CSS3 Transforms by Example.
How to Teach Industry Ready? is at Unicorn Institute.
Large Background Images in Web Design: Tips and Techniques. Nice summary of the various options.