some links to help with Jacob's terminology

The nonsense of 'knowledge management'
T.D. Wilson

central to Wilson's argument is a definition of tacit knowledge he takes from the influential 20th c. scientist & philosopher Michael Polanyi:
'tacit knowing achieves comprehension by indwelling, and... all knowledge consists of or is rooted in such acts of comprehension' (Polanyi, 1958)
Wilson believes that the idea he considers to be the classicist/cartesian, the notion that tacit knowledge can be "captured" perhaps through analysis, surveys, etc., is essentially manifestly repugnant. If it's rooted internally, you can't get to it by definition. In other words, the expression of tacit knowledge, say, through the drawing of a model, is not tacit knowledge. Heck, it;s not even a representation of that tacit knowledge. Instead of trying to manage knowledge, Wilson argues, we should manage tasks & work environments where such tasks inhere.

Structured observation:
http://informationr.net/tdw/publ/INISS/Chap1.html

Stigmergic systems:
http://www.stigmergicsystems.com/stig_v1/index.html?
http://www.stigmergicsystems.com/primer.html?

Embodied Cognition:
http://www.iep.utm.edu/e/embodcog.htm

Reminds me of the overused literary cliche that we are our environment (for a play on this idea, particularly in the, ahem, context of a web site and the absent person, see http://www.proximate.org/url1.htm)

Oh and here in Jacob is a little Lakoff...just read his "Dont Think of an Elephant", on Chrismas Day, in fact. Good layman's explanation of cognitive frames.

scaffolding=strategies, procedures, & tools

jacob's paper, sections:
embedded agents & embedded minds
function of constraints
language: the ultimate cognitive artefact
classification as scaffolding - classification scheme is a scaffolding; it constrains both associated knowledge domain & its participants; classification scheme sets the basis for reality in a given context
classification as infrastructure