Resources

W3Schools tutorials

• XML
• DTD
• XML Schema

• XSLT
• XSL-FO
• XPath

• XML DOM

• Web Services Tutorial
  
• WSDL Tutorial
• SOAP Tutorial
  

Sun tutorials

• XSL

XML validation

• Validator for XML Schema - w3.org

Misc

• XSL Tutorial - XML Files.com

• XML 1.0 - w3.org
• XML - w3.org
• XML.com - O'Reilly
• XML.org - OASIS

• XPath - w3.org

• RELAX NG - relaxng.org
• RELAX NG Tutorial - relaxng.org

• RELAX
• TREX

• Using W3C XML Schema - xml.com
• XML Schema Tutorial - w3.org
• XML Schemas: Best Practice - xfront