This study shows that the idea of a distributed catalogue of Internet resources integrated with standard Z39.50 library system OPAC interfaces (and hence, with retrieval of information on hard copy resources) is already a practical proposition at its most basic level, and the proposed next step, a distributed CATRIONA demonstrator project - based on the SCURL group of Scottish University and Research Libraries co-operating to catalogue local electronic resources and selected areas of the BUBL Subject Tree, but also sufficiently `open' to emcompass other sites, projects and approaches - is both feasible and essential.