Saxon: The Anatomy of an XSLT processor
- In this article Michael Kay, outlines the Saxon architecture to demonstrate the inner workings of an Extensible Style Language Transformations (XSLT) processor.
- http://www-128.ibm.com/developerworks/library/x-xslt2/

Investigating XSLT: The XML transformation language
- The XML transformation language - Article from the DeveloperToolbox Technical Magazine
- http://www-128.ibm.com/developerworks/library/it/it-0801art14/

XML Bible Chapter 17
- Covers the October 8, 1999 proposed recommendations of XSL Transformations and XPath.
- http://www.cafeconleche.org/books/bible2/chapters/ch17.html

DevGuru XSLT Introduction & Quick Reference
- This is a comprehensive 101-page reference source for all of the elements and functions that compose the eXtensible Stylesheet Language Transformation (XSLT) language version 1.0. This Quick Reference features real working code examples which were tested
- http://www.devguru.com/Technologies/xslt/quickref/xslt_intro.html

XSLT Reference & Implementation charts
- The site gives a reference of all elements in the W3C spec, detailing which implementations support the feature. The site focusses on MSXML (the most easily available implementation for VB programmers). The reference links to examples with the results gen
- http://www.topxml.com/xsl/XSLTRef.asp

XSLT and XPath Quick Reference
- Quick reference card developed by Mulberry Technologies in PDF format
- http://www.mulberrytech.com/quickref/index.html

XSL Transformation (XSLT) 1.0
- The official XSL Transformations (XSLT) specification. XSLT is a language derived from XSL for transforming XML documents into other XML (or HTML) documents. (W3C Recommendation 16 November 1999)
- http://www.w3.org/TR/xslt

W3Schools
- W3Schools provides comprehensive introductory content covering XSL.
- http://www.w3schools.com/xsl