The manuscript of The Baroque Cycle was written by hand on 100% cotton paper using three different fountain pens: a Waterman Gentleman, a Rotring, and a Jorg Hysek. It was then transcribed, edited, formatted and printed using emacs and TeX. When it was totally finished, the TeX version of of the ms. was converted to Quark XPress format using an emacs LISP program written by the author.
--- Neal Stephenson, demonstrating that (a) he is my kind of geek and (b) there is still hope for people who hate Microsoft. (Somewhat disappointingly, his website is using Microsoft-IIS/5.0 on Windows 2000. This almost certainly means that someone else is maintaining it for him, but is still sad).