Quake for the Blind
This article on Quake for the Blind pushes into my mind that intersection between accessibility and usability/HCI — Quake for the Blind. The creators talk about the challenges of “translating” Quake into something a blind person can use, and even play. I’ve been interested in accessibility for a long time (turned onto it by Kynn), and usability is something every web developer needs to know about.

Worth a read.