The application of a `Foucaultism' to contemporary critical analysis is by no means an easy task and Poster's book contains many valuable insights into the functioning of Foucault's work — particularly as it relates to modern Marxisms — within critical theory. Yet there remain a number of important themes which Poster appears merely to gloss over (eg, the precise nature of `historicity', the relation between the dialectic and reason, etc) providing no solution to the dilemmas thrown up by grounded theory (...) attempting to work within the field of a discursive analysis. The aim of this paper is to shed some light on the particular nature of `history' as it appears in Marx and in Foucault and to indicate some of the main characteristics of Foucault's analytical tools. The logic of the paper follows the logic of Poster's book, dealing with Marx first, Foucault second, and closes with an examination of some analytical implications of adopting a discursive/genealogical approach to the study of contemporary social phenomena. (shrink)