Ralph Johnson: Wow! I just read "The Social Life of Documents" by John Seely Brown and Paul Duguid at http://www.firstmonday.dk/issues/issue1/documents/index.html You might have to "login" first at http://www.firstmonday.dk
Boundary objects: things that connect one community to another; denziens of the interstitial space between communities. They ply the area between these communities.
Control: Getting people in other communities to speak your language.
