Dear Prof. Levin,

I am not sure what I've found can challenge your taxonomy. It seems to cover all of projects I 've been looking at if I don't misunderstand some of terminology.

I found a project called LISTEN which is currently conducted in Language Technology Institute in Carnegie Mellon. The aim for developing this tool is to combat illiteracy: "An automated Reading Tutor that displays a story on a computer screen, listens to a student read it aloud, and helps where needed". This project is based on speech recognizer - Sphinx-II which can listen to the child's reading and make a response with assistance modelled in part after expert reading teachers. The reason I choose this to challenge your taxonomy is that I couldn't find application of speech technology (speech recognizer/synthesizer) or human-computer communication in your classification if the taxonomy is based on usage of software, or whatever in education. However, this project maybe fit in the category of media for communication (tutoring system).

For Listen project, please visit: http://www.cs.cmu.edu/People/listen/index.html

For more projects related to AI, speech & Language technology, Human-computer Interaction, please visit one of my favorite sites: http://www.cs.cmu.edu/scs/project-homes.html

Best regards,
Jiaying