These articles were last updated in 2001-2. Hopefully they are still somewhat useful to people starting to learn about XML, and perhaps as a historical curiosity. They'll be updated evenutally, god willin.

• A brief Introduction to XML concepts.
• Using Schemas to define content models.
• Stylesheets transform documents and messages.
• The Schematron approach to high level document/message validation.
• Some basic information about XML Parsers .
• Just how clean is SOAP , anyway?
• What does XML mean for E-Business ?