Those of you interested in using wikis for teaching might want to have a look at a technique by Jason B Jones on The Salt-Box :: Wikified class notes.
Class notes themselves are epistemologically weird. Usually, we think of notes as private, but if they’re *too* idiosyncratic, they might not be very accurate, or very useful later in the semester. What would be useful is a set of canonical class notes: This is what we agree happened on this day in class.
I’ve had good results with a similar exercise in College Writing II, having groups of students develop definitions, as well as locate and create examples of rhetorical appeals.