Media
The thing I make the most of is hot air, I guess...
Television
My dissatisfaction with game-related media led me (with the ongoing help of many friends) to launch The Gameshelf, a TV show about obscure board and digital games. All episodes available online, along with supplementary information.
There is also Jmac's Arcade, a series of monologues set to video.
Writing
I write a lot. Well, maybe not so much as you, but more than most people, anyway.
Books
I have coauthored two books about technology: Perl & XML, with Erik Ray, published by O'Reilly & Associates, Inc. in April 2002; and Mac OS X in a Nutshell, with Chuck Toporek and Chris Stone, published by O'Reilly & Associates, Inc. in January 2003.
Weblogs
I keep an online journal detailing my daily wanderings. It's more of an open letter to my friends, really, but kept public because I am never entirely certain just who my friends are, so I split the difference.
Columns
Speaking of the O'Reilly Network, a column I wrote about ComicsML, a proposed simple markup language for online comics, got a lot of attention when it was published in 2001. (I maintain a website about ComicsML, for what it's worth, but the project isn't very active due to me being way too busy with another stuff, alas.)
I've also a piece about secure mailreading with Mac OS X, and another on Mac OS X and IMAP.
Random Essays and such
My report of sf27, a local Sci Fi movie marathon.
A zen-pop funny animal comic strip that I haven't worked on in years.