A PythonLanguage, FunctionalProgramming, and ExtensibleMarkupLanguage aficionado who writes two columns for IBM's developerWorks site: "Charming Python" and "XML Matters." The site (http://www-136.ibm.com/developerworks/) 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 Web**Review.com (DrDobbsJournal).
Visit his own site (http://gnosis.cx/publish/tech_index.html) for almost all of his articles. It's easy to navigate!
Be sure to scope out his "Ramblings on esoteric and flatfooted programming topics" (http://gnosis.cx/publish/tech_index_dw.html). You never know what you'll run into there: a couple papers on MetaClass programming in PythonLanguage, papers on cryptology, a HaskellLanguage tutorial, etc.
Author of the book Text Processing in Python (ISBN: 0321112547 ) (http://gnosis.cx/TPiP/).
Also of interest, a couple papers on OpenSourceVotingSoftware (http://gnosis.cx/publish/).
On WikiPedia: http://en.wikipedia.org/wiki/User:Lulu_of_the_Lotus-Eaters