Good paper by Nick Noakes, written in 1999, comparing and contrasting collaboration and cooperation. Some, such as Matthews, et.al. (1998) define the distinction differently than I would. "with cooperative learning being very much teacher-controlled and collaborative learning being learner-controlled." But Noakes, I think, is closer to here: "When cooperating, it is only physical resources (objects, time, money) or intellectual resources (knowledge, expertise) that are shared. Whereas when collaborating, in addition to these shared physical and intellectual resources, are shared goals, responsibilities, values, beliefs and attitudes." Groups collaborate, networks cooperate. There's a lot more here, too - the role of community and the impact of the technology used.