Ch. 1. Introduction -- Pt. I. Supporting Technologies for XML -- Ch. 2. The World Wide Web and XML -- Ch. 3. Web Database Management and XML -- Ch. 4. Information Retrieval Systems and XML -- Ch. 5. Information Management Technologies and XML -- Ch. 6. E-Commerce and XML -- Ch. 7. Metadata, Ontologies, and XML -- Pt. II. XML and the Semantic Web -- Ch. 8. Basic Concepts in XML -- Ch. 9. Advanced Concepts in XML -- Ch. 10. The Semantic Web -- Ch. 11. Semistructured Databases -- Pt. III. Applications of XML -- Ch. 12. XML Applications to E-Commerce -- Ch. 13. Applications of XML to Data Management -- Ch. 14. Applications of XML to Information Management -- Ch. 15. XML-Related Data and Information Management Tools for the Web -- Ch. 16. Building the Semantic Web -- Ch. 17. Summary and Directions -- App. A. Data Management Systems: Developments and Trends -- App. B. Database Systems and Related Technologies.