This article is an attempt to operationalize A.N. Whitehead's ontological approach within sociology. Whitehead offers lessons and clues to a way of re-envisioning `sociological practice' so that it captures something of the nature of a `social' that is at once real and constructed, material and cultural, and processual and actual. In the course of the article, the terms `operationalize' and `sociology' will themselves be transformed, not least because the range of objects and relations of study will far outstrip those common (...) to sociology; further, the term `operationalize' would seem to retain the notion of a stable sociologist-subject translating precepts into methods. So, the article will follow Whitehead's shift in emphasis toward an understanding of much more relational, heterogeneous and emergent entities — which in turn will require new methodological approaches. In staking out these claims, we follow in an intellectual lineage in which Whitehead's presence has been profound but generally oblique. For it is clear that, while Whitehead has informed various writing, little attempt has been made to draw out, more or less systematically, some of the general methodological tactics that would allow us to practise a Whiteheadian sociology. (shrink)