It is difficult to find an educational use of technology that does not at least one or more of the taxonomy created by Bruce and Levin. However, I like to point to a particular educational web page I found very difficult to fit in any of the taxonomy.

http://www.emxs.com/tutor.htm

Looking at the four categories indicated by Bruce and Levin:

Inquiry

Communication

Construction

Expression

This is a page turner that is difficult for me to categorize. I think there should another category for "Miscellaneous"