Though I do not think it has changed, the file BITNET INTRO on
listserv@bitnic (bitnic.educom.edu) was recently replaced.
This offers a quick summary and pointers to other LISTSERV-accessible
files that introduces basic BITNET facilities such as E-mail, LISTSERVs,
and NETSERVs.
It is 358 lines long.
Might be useful as a syllabus.
/Pete