Q methodology is used as part of the CiviCon Citizen Conferences (currently only in german) by Maximilian Held.
Donner 2001: Using Q-Sorts in Participatory Processes
Donner, Jonathan C. (2001): Using q-sorts in participatory processes: An introduction to the methodology. In Social Analysis: Selected Tools and Techniques (Social Development Papers, Number 36, pp. 24-59) . Washington, DC: The World Bank, Social Development Department
Q Methodology 