"Swarm intelligence (SI) is the collective behavior of decentralized, self-organized systems, natural or artificial"
http://en.wikipedia.org/wiki/Swarm_intelligence
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Bonabeau, Eric; Doringo, Marco; Theraulax, Guy. Swarm Intelligence: from Natural to Artificial Systems. New York: Oxford University Press, 1999.
Falkvinge, Rick. Swarmwise: The tactical manual to changing the world. CreateSpace, 2013.
Godlin, Seth. Tribes: We need you to lead us. Penguin, 2008.
Edwards, Sean J. A. Swarming on the Battlefield: Past, Present, and Future. Santa Monica, CA: RAND, 2000.
Kelly, Kevin. Out Of Control: The New Biology Of Machines, Social Systems, And The Economic World. Basic, 2009.
Levy, Pierre. Collective Intelligence: Mankind's Emerging World in Cyberspace. Basic, 1999.
Miller, John; Page, Scott. Complex Adaptive Systems: An Introduction to Computational Models of Social Life. Princeton, 2007.
Rolling Jr, James Haywood. Swarm Intelligence; what nature teaches us about shaping creative leadership. Palgrave Macmillan, 2013.
Shirky, Clay. Here Comes Everybody: The Power of Organizing Without Organizations. Penguin, 2008.
Surowiecki, James. Wisdom of Crowds. Anchor, 2005.
Van Creveld, Martin. The Transformation of War. New York: Free Press, 1991.
Wilson, Edward O. The Insect Societies. Cambridge: Harvard University Press, 1971.