AMMDI is an open-notebook hypertext writing experiment, authored by Mike Travers aka mtraven. It's a work in progress and some parts are more polished than others. Comments welcome! More.
A programming environment originally built by Andy diSessa and Hal Abelson, sort of a Logo with a hierarchical visual object interface. Was a direct inspiration for my dissertation which built on the recursive-containment metaphor but was trying to be more object-oriented. boxer.pdf
Implemented in Lisp. I was the person who ported it from Allegro to the more accessible Mac Common Lisp and gave it another couple of decades of life. hack Somebody is porting it to the web so it will live on: It lives on The Boxer Project