“…enabled one working group to take a simple, well understood tag (perhaps the single most important tag on the web, since hyperlinks are the most defining aspect of the web), and make it needlessly different, and more complex…”
He’s got some good thoughts on the XML namespace debate going on at the W3 this week. The quote above refers to XLink and how it is proposed to complicate the simple and most important a tag.

CSS3 For Web Designers Paperback + eBook A Book Apart
Bulletproof Web Design Third Edition New Riders
Handcrafted CSS Book and DVD New Riders
Web Standards Solutions Special Edition Friends of Ed
Instapaper Icon design