Elinor Ostrom, economics nobel prize in 2009 and inspiration for thinking about knowledge as a Commons, died june 12th. http://elinorostrom.indiana.edu/
Three book references:
Elinor Ostrom
Governing the Commons: The Evolution of Institutions for Collective Action
Charlotte Hess, Elinor Ostrom (Ed.)
Understanding Knowledge as a Commons: From Theory to Practice
http://mitpress.mit.edu/catalog/item/default.asp?ttype=2&tid=11012
Silke Helfrich, Heinrich-Böll-Stiftung (Hg.)
Commons – Für eine neue Politik jenseits von Markt und Staat
Luxcommons asbl 