The Global Civil Society Yearbook programme has always involved efforts to collate and collect data that might inform our understanding of this complex phenomenon. In addition to the empirical evidence used by chapter authors, we have included sections of quantitative data in most editions. These have been compiled from a number of sources and presented in various formats, following a conceptual framework devised by Helmut Anheier (Anheier 2001). The concepts that are central to the study of global civil society (GCS) do not lend themselves easily to the classical, conventional research methods and methodologies of the social sciences. Anheier and Katz have explored a number of ways in which existing data might be analysed for GCS studi...