"XML is the s-expressions of the millenium."

Here are some presentations that I've done in the line of duty:


Key Pages

W3C XML Activity
The W3C home page for XML
Tim Bray's Annotated XML Specification
The spec anotated by one of the authors. Juicy.
IBM's XML Page
I still have a soft spot in my heart for IBM.
XML.com
News articles, tutorials, and event announcements

Tools

Emacs

PSGML Mode
This is the best tool I've found for editing XML with some semantics.
tdtd Mode
An Emacs mode for editing DTD's.

Java

XML.apache.org
Your one stop open-source shop for XML on Java

Python

Python XML Package
This is the place