“This paper considers how legal technology, defined here as the use of digital information and communication technologies to automate or part automate legal work process, to provide decision support to legal service providers, and to provide legal information and advice directly to clients/end users, is re-shaping both legal work processes, and the organisation and governance of legal practice. Starting from an essentially descriptive and functional account of legal technology, the paper explores its role in changing the temporal-spatial and organisational characteristics of practice, and in creating new challenges for the regulation of legal services. The paper then moves explicitly into sociological theory to address the question how new legal technologies are reshaping the landscape of professional knowledge and expertise itself. It concludes by drawing together implications of these various strands for the future sustainability and legitimacy of the legal profession in its present form.”