Just as an aside (and we don't want to interrupt the flow of this interesting thread too much), we have an exhibition opening in south east of Brussels this Tuesday, where most of the work we are showing touches on the themes under discussion here.
In general our art making over the years has constantly looked at crossovers between appropriation in art, materiality of live (often 'pre-owned') data, and documentary practices. So if any of you are in range of Brussels on Tuesday or are passing by there in the next couple of months, then please do stop by.
More info here: http://thomson-craighead.blogspot.com/2011/10/solo-exhibition-in-brussels.html
Thanks and best wishes,
Jon & Alison