Sadly, as of 2020, none of these fine print magazines still exist (and the tech world is a poorer place as a result). Most of the links still work, though.

FYI: I stopped producing articles around the same time I started working on writing Head First books.

Articles and Reviews for Linux Journal

• March 2011: Article: Python for Android.
  
• September 2010: Article: Doing IT the App Engine way.
  
• August 2009: Article: Python Python Python (aka Python 3).
• May 2009: Article: Introducing Three Python Web Frameworks.
• February 2009: Article: Improved Scaffolding for Ruby on Rails.
• July 2008: Article: Introducing OpenLaszlo 4.
• May 2007: Article: An Ajax-Enhanced Web-Based Ethernet Analyzer.
• September 2006: Article: Web Reporting with MySQL, CSS and Perl.
• March 2006: Book Review: Grid Computing for Developers.
• March 2006: Conference Report: FOSS Means Business, Belfast.
• October 2005: Article: The Linux for Kids Experiment.
• September 2005: Book Review: Perl Best Practices.
• April 2005: Article: Building Impress and PowerPoint Slides with LaTeX and Perl.
• March 2005: Article: A Database-Driven Web Application in 18 Lines of Code.
• October 2004: Book Review: The Practice of Network Security.
• February 2004: Article: Making Sense of Startup.
• January 2004: Book Review: Hacking the Xbox.
• December 2003: Book Review: Inside the Security Mind: Making the Tough Decisions.
• October 2003: Book Review: Creating Applications with Mozilla.
• July 2003: Book Review: Extending and Embedding Perl.
• May 2003: Book Review: Programming Jabber.
• April 2003: Conference Report: LinuxWorld Ireland 2003.
• February 2003: Article: Installing Slash for a Private Project.
• November 2002: Article: Scary Backup Stories.
• March 2002: Article: Green Beer? Not Here! Exposing the myth of green beer.
• February 2002: Book Review: Core Perl: A Book Review.
• December 2001: Article: Perceptions of the Linux OS Among Undergraduate System Administrators.
  [In its day, this article was one of the most commented-upon articles on the LJ website.]
• August 2001: Article: The Trials and Tribulations of Installing LinuxPPC 2000 Q4.
• March 2001: Book Review: Perl: The Programmer's Companion.
• February 2001: Book Review: Debugging Perl: Troubleshooting for Programmers.
• February 2001: Article: Which Programming Language?.
• December 2000: Article: Mac OS X: First Impressions.
• December 2000: Book Review: Programming Perl, 3rd Edition.

Articles and Book Reviews for The Perl Journal

• January 2006: book review of Simon Cozen's Advanced Perl Programming, 2nd Edition, published by O'Reilly Media.
• March 2005: article entitled Monitoring Network Traffic, Revisited.

Articles for The Perl Review

• November 2002: The (0,6) issue of The Perl Review includes an article of mine entitled Who's Doing What? Analyzing Ethernet LAN Traffic.