A Survey of XML Standards: Part 1
http://www-106.ibm.com/developerworks/xml/library/x-stand1.html

Ogbuji, Uche
IBM
2004

Abstract:

The world of XML is vast and growing, with a huge variety of standards and technologies that interact in complex ways. It can be difficult for beginners to navigate the most important aspects of XML, and for users to keep track of new entries and changes in the space. In this series of articles, Uche Ogbuji provides a guide to XML standards, including a wide range of recommended resources for further information.