I've stumbled across some older, but still very interesting articles by Kurt Cagle regarding combining Drupal and XML technologies:
- Drupal as Open Architecture
- XProc: Drupal, XML Pipelines and RESTful Services
- http://news.oreilly.com/kurt-cagle/
- http://www.xmltoday.org
http://semanticmodeling.blogspot.com
Related articles:
Can New XML Technologies and the Semantic Web Deliver on Their Promises? by Alix Vance
- The Drupal API turns a CMS into a true enterprise application by William O'Connor
