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Some commons-based peer production efforts are less self-conscious on the part of the users, and emerge more as a function of distributed coordinate behavior, like del.icio.us or Flickr. The critical defining feature of these “enterprises” is that they rely primarily on social information flows, motivations, and relations to organize the group. Individuals self-identify, mostly, for tasks, and through a variety of peer-review mechanisms contributions get recognized by the group and incorporated into what emerges as the collaborative output.
—Yochai Benkler interview in OpenBusiness (about his book The Wealth of Networks)