A Python Language, Functional Programming, and Extensible Markup Language aficionado who writes two columns for IBM's developerWorks site: "Charming Python" and "XML Matters." The site (www-136.ibm.com 
) is just about unnavigable, so you'll need to use its search facility to find Mertz there.
He also writes for Intel Developer Services, O'Reilly ONLamp, and WebReview.com (Dr Dobbs Journal).
Visit his own site (gnosis.cx ) for almost all of his articles. It's easy to navigate!
Be sure to scope out his "Ramblings on esoteric and flatfooted programming topics" (gnosis.cx ). You never know what you'll run into there: a couple papers on Meta Class programming in Python Language, papers on cryptology, a Haskell Language tutorial, etc.
Author of the book Text Processing in Python (ISBN 0321112547) (gnosis.cx ).
Also of interest, a couple papers on Open Source Voting Software (gnosis.cx ).
See original on c2.com