Background and Specifications
XML Version 1.0 Specification
The most recent W3C Working Draft on the proposed specification.
Extensible Markup Language (W3C)
An overview of XML, with links to news, publications, discussion forums and related resources.
XML will take the Web to the next level
PC Week Labs explores enabling technologies of next-generation markup language.
XML, Java, and the future of the Web
A report on XML and Java, from Jon Bosak of Sun Microsystems, chairman of the W3C SGML Editorial Review Board.
The XML FAQ
Commonly Asked Questions about the Extensible Markup Language, by Peter Flynn et. al.
Microsoft XML White Paper
Background on the proposed standard, including some code samples.
The XML Files
From Web Review, a four-part article on XML which includes interviews with two XML experts.
XML: The New Markup Wave
A report comparing SGML, HTML and XML.
Textuality XML Page
Background on XML from the makers of the Lark parser.
VSMS JAVA-XML Home Page
From the Virtual School of Molecular Sciences, an online course in Java and XML development.
Extensible Markup Language (XML)
An exhaustive and well-organized list of links to technical information, samples, FAQs, and other XML resources.
XML: a professional alternative to HTML
An informative article on numerous aspects of XML, by Ingo Macherius.

TOOLS
The XML Toolbox
A list of software with XML Capabilities. Part of Steve Pepper's Whirlwind Guide to SGML Tools and Vendors.
ZDNet Whole Web Catalog: HTML Authoring

Newsgroups and Mailing Lists
comp.infosystems.www.authoring.misc
comp.text.sgml
XML-Dev: A list for W3C XML Developers

More Links
Yahoo! Category: XML