I had forgotten what a great resource A List Apart was. With a new quarter beginning soon--one in which I'll be teaching a section of XML for the Web, and one of Web Design & Implementation--it's good I rediscovered it.
A few articles that will be immediately useful--CSS Beyond the Browser: Going to Print, Practical CSS, and Using XML.
The problem with teaching these kinds of technologies isn't finding material--it's finding the good material. This goes on my "short list."