For profs and instructors:
Course slides on HCI topics that I've translated to English (updated 2015)
Slides on information visualization (updated 2015); and a few figures illustrating concepts in visualization (updated 2012)
JWinPointer.jar is a Java library for multitouch and stylus pen input events on Microsoft Windows 10
Notes for programmers on reading raw input events over USB from a Wacom Cintiq 24HD touch on Linux using C++ or Java, or on MS Windows 7 using Java (updated 2014).
For anyone interested in science, here is a list of interesting things.