“The low cost of aggregating information also allowed the formalization of sharing [...].”

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

“Information sharing produces shared awareness among the participants, and collaborative production relies on shared creation, but collective action creates shared responsibility, by tying the user's identity to the identity of the group.”

“[T]he ways in which the information we give off about our selves, in photos and e-mails and MySpace pages and all the rest of it, has dramatically increased our social visibility and made it easier for us to find each other but also to be scrutinized in public.”

“It’s not information overload. It’s filter failure.”

“The basic capabilities of tools like Flickr reverse the old order of group activity, transforming 'gather, then share' into 'share, then gather'.”

“[B]ecause the minimum costs of being an organization in the first place are relatively high, certain activities may have some value but not enough to make them worth pursuing in any organized way. New social tools are altering this equation by lowering the costs of coordinating group action.”