Microsofts XML Developer Center. More info

Has information on all the latest developments and products associated with XML. Has a huge XML search engine and database. More info

The world's largest index site for web developers. More info

A news site for XML developers. Our aim is to distill the essential news, opinions, tips and issues concerning XML development from the growing number of high-quality online information sources. More info

XML news, information, and how-to techniques, including articles, links, discussion groups, and answers to frequently-asked technical questions about XML and XML development; part of DevX. More info

ebXML (Electronic Business using eXtensible Markup Language), is a modular suite of specifications that enables enterprises of any size and in any geographical location to conduct business over the Internet. Using ebXML, companies now have a standard method to exchange business messages, conduct trading relationships, communicate data in common terms and define and register business processes. More info

The W3C page on the XSL. More info

XSLT is a language for transforming XML documents into other XML documents. The Quick Reference contains all XSLT elements and functions. More info

XSLT is a language for transforming XML documents into other XML documents. XSLT is designed for use as part of XSL, which is a style sheet language for XML. In addition to XSLT, XSL includes an XML vocabulary for specifying formatting. XSL specifies the styling of an XML document by using XSLT to describe how the document is transformed into another XML document that uses the formatting vocabulary. XPath is a language for addressing parts of an XML document, designed to be used by both XSLT and XPointer. More info

A great resource site for XSLT, XML and XSL with tutorials, tools and links. More info