Primary author, RESTful Web Services, O'Reilly and Associates. May 2007.
Primary author, Ruby Cookbook, O'Reilly and Associates. July 2006. Finalist, 2007 Jolt Awards.
Co-author, Beginning Python, Wiley Books. July 2005.
Unit Testing Your Documentation. O'Reilly Network. September 2006.
http://www.onlamp.com/pub/a/onlamp/2006/09/07/unit-testing-docs.html
Building and filling out templates with Python and Cheetah. IBM developerWorks. August 2005
http://www-128.ibm.com/developerworks/opensource/library/os-pythcheetah/index.html
The Ultra Gleeper: A Recommendation Engine for Web Pages: Presented at CodeCon 2005
http://www.crummy.com/software/UltraGleeper/IntroPaper.html
Beyond the Config File: User-Friendly Configuration For Web Apps: Presented at Pycon 2003 and EuroPython 2003
http://www.crummy.com/software/PyCon2003/Beyond%20The%20Config%20File.htm
The Ultra Gleeper (http://www.crummy.com/software/UltraGleeper/)
The personal web page recommendation engine.
Beautiful Soup (http://www.crummy.com/software/BeautifulSoup/)
An HTML parser that makes screen-scraping easy.
robotfindskitten (http://www.robotfindskitten.org/)
The original Zen simulation.
More at http://www.crummy.com/software/