Extensive Listing of XML Books

Extensive Listing of XML Tree Viewers

Extensive Listing of XML EDI Resources

Extensive Listing of XML Application Builders

Extensive Listing of XML Information Servers

XML-enabled automated content/document exchange systems

News and announcements excerpted from the XML Cover Pages, edited by Robin Cover.

XML-related standards and working drafts, listed alphabetically.

Extensive listing of XML Related events

Extensive Listing of XML Resources from XML.com

O'Reilly, XML.com, O'Reilly Network, Web linking, navigation and page markup technologies.

O'Reilly, XML.com, O'Reilly Network, ransforming XML to its published format: web, screen or print.

O'Reilly, XML.com, O'Reilly Network, Defining XML vocabularies and validating XML documents.

O'Reilly, XML.com, O'Reilly Network, XML programming styles, interfaces and products.

O'Reilly, XML.com, O'Reilly Network, XML in wireless, portable and embedded devices.

O'Reilly, XML.com, O'Reilly Network, Classification, annotation and representation of information.

O'Reilly, XML.com, O'Reilly Network, Using XML to represent and exchange graphics.

O'Reilly, XML.com, Issues around transferring data between XML and databases.

O'Reilly, XML.com, O'Reilly Network, Analysis of business issues in XML: management, planning, industry initiatives and consortia.

Well, I am not really sure who Dortman is, but it offers a nice, concise organization of XML related resources.