The neofunctionalism of Jeffrey Alexander -- Pierre Bourdieu -- Ethnomethodology -- Exchange theory -- Michel Foucault -- Anthony Giddens -- Erving Goffman -- Jurgen Habermas -- Niklas Luhmann -- Robert K. Merton -- Network and social capital theory -- Talcott Parsons -- Rational choice theory -- The phenomenological perspective of Alfred Schutz -- Structuralism in sociology and other social sciences -- Symbolic interactionism.