Links of interest from December 27, 2011 through January 3, 2012:

A very handy userscript that adds a per-repo search box to GitHub pages. Also led me to discover NinjaKit.
Fullscreen Background Image Slideshow with CSS3
Pretty sweet.
Code Highlighting and Marked Preview Styles in nvALT
This works really, really well. Thanks Chris!
impress.js – presentation tool based on the power of CSS3 transforms and transitions in modern browsers
Via Mr. jxpx777, the coolest CSS3/JavaScript presentation I’ve ever seen.
Via @ryur, an intriguing framework for zsh configuration management. Now I just have to make the switch to zsh.
themeleon :: Twitter Profile Designer
This is among the most dangerous tools on the Internet.