Networks, Social media, weak signals...

Mark S. Granovetter (1973) The Strength of Weak Ties. The American Journal of Sociology, Vol. 78, No. 6 (May, 1973), pp. 1360-1380,(article consists of 21 pages. Published by: The University of Chicago Press. Stable URL:

James Surowiecki. (2005) The wisdom of crowds. (Wikipedia) (News in Finnish)

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