HTML Home Page
The W3C's HTML website, including information about HTML and XHTML.

XHTML.org
A large source of information, with news and books about XHTML.

The HTML Writers Guild
Details the main differences between HTML and XHTML.

XHTML: Where XML and HTML meet
Discussion of XHTML 1.0 and how it improves on the HTML 4.0 standard. Examines the issues involved in the transition between HTML and XHTML. Also explores backwards compatibility to HTML and XHTML modularization.

NYPL Styleguide
XHTML 1.0 overview. Includes discussion of accessibility and document validation. Also XHTML authoring tips and tools featuring the use of Dreamweaver.

XHTML clip library for Notetab Pro
XHTML library for the Notetab Pro text editor. Extensive library consisting of all the XHTML strict elements and attributes, and wellformedness checks.

XDG: XHTML Design Guide
Introduction, tutorial, standards documents, and links to articles.

New Architect
Article exploring the issues involved in migrating from HTML to XML.

XHTML Startkabel
Portal site to XHTML resources.

Web Developer Foundations: Using XHTML
This companion web site for a textbook on web development and XHTML offers hints, tutorials, and a forum.

XHTML Web Design for Beginners
An introductory article for those with no prior experience of HTML. Covers version 1.0 Transitional.

XHTML is the Most Important XML Vocabulary
An article covering possible future outcomes for version 2 of the standard.

Markup.co.nz
Validator which attempts to load XHTML document in the MSXML parser and generate an error report. [Online and Download]