The sociology of knowledge showed, two generations ago, how major world-views are based on the interests and experiences of major social groups. Research on the sociology of science, giving fascinating glimpses of laboratory life and prestige hierarchies among scientists, has revealed the social relations underpinning knowledge in the natural sciences. The point is reinforced by Michel Foucault's celebrated researches on 'power-knowlege', the intimate interweaving of new sciences (such as medicine, criminology, and sexology) with new institutions and forms of social control (clinics, prisons, factories, psychotherapy).

Research is something that everyone can do, and everyone ought to do. It is simply collecting information and thinking systematically about it. The word ‘research’ carries overtones of abstruse statistics and complex methods, white coats and computers. Some social research is highly specialised but most is not; much of the best research is logically very straightforward. Useful research on many problems can be done with small resources, and should be a regular part of the life of any thoughtful person involved in social action.