Extensible Markup Language [XML]
W3C Tutorials (W3CSchools.com) Completely Free Web Building Tutorials !!
XMLTutorial (zvon.org)
Tutorials, Links and more (Xml101.com )
Xml Tutorials (Perfectxml.com)
Xml Tutorials (XMLPitstop)
Developmentor XML Tutorial (develop.com)
XML-Data Specs and Standards
XML 1.0 Recommendation (W3.org) XML and DTD Syntax
O'Reilly (Xml.com)
Java Technology and XML (Java.sun.com)
Processing XML with Java(free online book by Elliotte Rusty Harold)
XML/PHP Tutorials (htmlgoodies.com)
Projectcool developer zone (Devx.com)
Web Developers Virtual Library (Wdvl.internet.com)
Guide to XML (WebDeveloper.com )
OASIS XML Page
XML Zone (IBM)
Introduction to XML (IBM)
XML Web services (Microsoft.com)
XML Languages (Microsoft.com)
Directory of XML Resources (Xmldir.com)
XML Articles (4Guys)
SOAP Resources (Soaprpc.com)
Msxml.com
The XML FAQ
What is XML!
Extensible Markup Language(XML)
An Introduction to XSL
Chapters by Subject (Perfectxml.com)
XML in 10 points (w3.org)
The XML Revolution --Technologies for the future Web
XML is... (architag, xmlu)
A Technical Introduction to XML (Arbortext)
Java and XML: putting SAX to work (Javaboutique)
XML: Principles, Tools, and Techniques Dan Connolly (Editor)
XML Complete (McGraw-Hill Complete Series) Steven Holzner
Instant XML Programmer's Reference Trevor Jenkins
XML: A Primer Simon St. Laurent
Presenting XML by Richard Light
The SGML FAQ Book: Understanding the Foundation of HTML and XML (Steven J. Derose)
Teach Yourself XML in 21 Days (Teach Yourself...Series) James K. Tauber
Using XML Patricia Ju
XML: Extensible Markup Language by Justin Higgins, Ruth Maran
XML for Dummies (For Dummies Series) Ed Tittle, et al
Hands on XML Rob Tidrow
Practical Guide to SGML/XML Filters Norman E. Smith
Sample Chapters