He has also been active in collaborative research projects, and in organising conferences and colloquia, including:  Convener of the Textbook Colloquium (1988–99); co-organiser (with Stephen Harrison and Chris Kraus of conference on “Classical Commentaries” (Oxford, 2012); member of Advisory Board, “Classics and Class in Britain”, King’s College London, 2013–16 (from 2016 “People’s History of Classics”); co-organiser (with Stephen Harrison) of conference on “Liddell & Scott” (Oxford, 2013).