Browsing CSS
CSS Performance Testing
Jon Sykes thoroughly tests and confirms Dave Hyatt’s suggestion that sibling, descendant and child selectors have a significant, negative impact on page rendering. More importantly, his tests quantify the actual impact on performance. That’s it, I’m going back to working with tables. 
DevKick
Really digging the typography and color of this new web design and development aggregation site by the man originally responsible for Stylegala.
CSS (in)Efficiency
Jim Barraud echoes unanswered questions about the performance of descendant selectors.
Read Image to Data Droplet for OS X
Convert Images to Base64 TextMate bundle
The page is in Catalan but the bundle is in English and pretty self-explanatory. Just drop the .tmCommand bundle file on TextMate. Then you can select some CSS or HTML that contains references to external images, hit Apple + control + B and they will be encoded as base64 and embedded with the data: protocol. Killer. Completely eliminates the need for that AppleScript droplet I was about to release.
Qualified Selectors in jQuery
John Resig with a simple two-line plugin for jQuery that maps the proposed qualified selector syntax to the similar and already implemented (in jQuery) :has selector.
The Highly Extensible CSS Interface
Cameron Moll’s first series of articles in three years looks to have been well worth the wait. Part One, The Foundation, is up now.
Predicting the Past
Two must-read articles in ALA’s latest, Beyond DOCTYPE and From Switches to Targets. Future-proofing never seemed so backward.