I am a postdoc in philosophy.
I contribute to a blog for philosophers who use LaTeX. If you fall in to that niche, check it out: PhilTeX. (The blog will be of use to all kind of humanities scholars using LaTeX, I imagine, but it was started by, and is run by philosophers...) The blog is currently defunct, but may be resurrected soon.
I made this beamer colour change package that slowly changes the colour of structure elements of beamer presentations. Feedback welcome.
I also made this moreenum package which adds new enumeration options.
The TeX goodies page of my website includes some other bits and bobs I've done.
TeX - LaTeX
Q&A for users of TeX, LaTeX, ConTeXt, and related typesetting systems
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
Mathematics
Q&A for people studying math at any level and professionals in related fields
Stack Overflow
Q&A for professional and enthusiast programmers
Area 51
Stack Exchange Network staging zone, where users come together to build new Q&A sites
Meta Stack Overflow
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems.
Physics
Q&A for active researchers, academics and students of physics
Photography
Q&A for professional, enthusiast and amateur photographers
Cross Validated
Q&A for statisticians, data analysts, data miners and data visualization experts
Android Enthusiasts
Q&A for enthusiasts and power users of the Android operating system
Theoretical Computer Science
Q&A for theoretical computer scientists and researchers in related fields
Programmers
Q&A for professional programmers interested in conceptual questions about software development