Important in the early groups were Charles Tilly and Stanley Milgram, the former focused on networks in political sociology and social movements, while the latter developed the “six degrees of separation” thesis.
Muhimu katika makundi ya awali walikuwa Charles Tilly na Stanley Milgram, wa zamani walilenga mitandao katika sosholojia ya kisiasa na harakati za kijamii, wakati wa pili waliendeleza nadharia ya "digrii sita za kujitenga".