“The centrality of group effort to human life means that anything that changes the way groups function will have profound ramifications for everything from commerce and government to media and religion.”

“Tools that provide simple ways of creating groups lead to new groups, [...] and not just more groups but more kinds of groups.”

“We use the word 'organization' to mean both the state of being organized and the groups that do the organizing.”

“Unlike sharing, where the group is mainly an aggregate of participants, cooperating creates group identity.”

“Digital networks are increasing the fluidity of all media. The old choice between one-way public media (like books and movies) and two-way private media (like the phone) has now expanded to include a third option: two-way media that operates on a scale from private to public.”

“[N]ew technology enables new kinds of group-forming.”

“Society is not just the product of its individual members; it is also the product of its constituent groups.”