Words
My resume.
Analysis of the Values in the LSI term-term matrix (PDF)
An academic paper, coauthored with Dr. Kontostathis, which analyzes the possibility of approximating the latent semantic index of a matrix. It also explains what that means, in case you didn't catch it the first time.
A tutorial, originally published at kuro5hin.org, describing the mathematics, uses, and creation of a simple perceptron in python.
My tutorial on how to create a secure PHP Login for a webpage. It's been read at least 60,000 times, both here and at PHPComplete, where it was originally posted. Since PHPComplete no longer exists, I've cleaned it up and posted it here.