XML Standards

Specifications

W3C Specification for Extensible Markup Language (XML)

W3C Specification for XML Schema

W3C Specification for XML Namespaces

W3C Specification for XSL Transformations (XSLT)

W3C Recommendations (XML)

Fundamentals

XML.com -- What is XML?

XML.com -- A Technical Introduction to XML

XML.org -- XML Basics

XML.org FAQ

Microsoft XML Fundamentals

Resources

XML.org Glossary

Microsoft XML Developer Centre

Sun Java Technology XML

XML.com

e-Learning

W3C Schools XML Tutorials