> 2) Remember that writing is a technology too: we literate people
> have always been skilled users of technology.

Amen. This point is not made often enough.

I'd also suggest teaching the importance of generalized technological
knowledge -- concepts unrelated to any specific program, operating system,
or computer hardware configuration. Such as the basics of http service,
the way file systems are organized ... not super-technical information,
but enough to facilitate understanding of general methodologies. I plan to
complete a book which covers this topic in detail done in about a year and
a half. :)

Helping students understand a bit of graphic design can make creating
writing for visual presentation more comfortable. (This may speak more to
Roger's list than yours.) Robin Williams' _The Non-Designers' Design Book_
is wonderful and quite accessible to (imagine this) non-designers. I have
a brief summary of her four principles of design here:

http://web.nwe.ufl.edu/~dilger/nerd/webdev/williams-four.html

best,
cbd.