Computer Ethics Map
I am having a marvelous debate with Hugh, and during the course of one of my responses i came across this map! Delightful. I took computer ethics courses in the early 90s when they were just starting up, and dang, the field has come a long way!
The map on the originating site is interactive, you click on a philosophical region and it takes you to its watershed of knowledge. There is more info in the text associated with each region.

