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recommended by Howard Rheingold,  He says: "Mark Elliott claims that Wikipedia is an example of how people use online media stigmergically." Mark Elliott says (from the site): "As stigmergy is a method of communication in which individuals communicate with one another by modifying their local environment, it is a logical extension to apply the term to many types (if not all) of Web-based communication, especially media such as the wiki."

In the pages that follow we advance two propositions. First, people cooperate not only for self-interested reasons but because they are genuinely concerned about the well being of others, care about social norms, and wish to act ethically. People punish those who exploit the cooperation of others for the same reasons. Contributing to the success of a joint project for the benefit of one's group, even at a personal cost, evokes feelings of satisfaction, pride, even elation. Failing to do so is often a source of shame or guilt. Second, we came to have these "moral sentiments" because our ancestors lived in environments, both natural and socially constructed, in which groups of individuals who are predisposed to cooperate and uphold ethical norms tended to survive and expand relative to other groups, thereby proliferating these pro-social motivations. The first proposition concerns proximate motivations for prosocial behavior, the second addresses the distant evolutionary origins and ongoing perpetuation of these cooperative dispositions.

[JOSEPH HENRICH:] The main questions I've been asking myself over the last couple years are broadly about how culture drove human evolution. Think back to when humans first got the capacity for cumulative cultural evolution-and by this I mean the ability for ideas to accumulate over generations, to get an increasingly complex tool starting from something simple. One generation adds a few things to it, the next generation adds a few more things, and the next generation, until it's so complex that no one in the first generation could have invented it. This was a really important line in human evolution, and we've begun to pursue this idea called the cultural brain hypothesis-this is the idea that the real driver in the expansion of human brains was this growing cumulative body of cultural information, so that what our brains increasingly got good at was the ability to acquire information, store, process and retransmit this non genetic body of information.

Innate human propensities for cooperation with strangers, shaped during the Pleistocene in response to rapidly changing environments, could have provided highly adaptive social instincts that more recently coevolved with cultural institutions; although the biological capacity for primate sociality evolved genetically, the authors propose that channeling of tribal instincts via symbol systems has involved a cultural transmission and selection that continues the evolution of cooperative human capacities at a cultural rather than genetic level - and pace.

" According to the parable of the tribes, civilized peoples have been compelled to live in societies organized for the maximization of competitive power. People become the servants of their evolving systems, rather than civilized society being the instrument of its members."

Canadian site encouraging aiding and abetting cooperation towards desired changes at a community level.