Thanks for the reference, that's just the kind of thing I hoped to get from posting this this early. I just ordered a copy of Pickering's Mangle of Practice from Amazon. You might want to consider leaving a review there (http://www.amazon.com/Mangle-Practice-Time-Agency-Science/dp/0226668037/ref=sr_1_3?ie=UTF8&s=books&qid=1260135413&sr=8-3), especially since there aren't any reviews yet.