The OAI series of workshops is one of the biggest international meetings of technical repository-developers, library Open Access policy formulators, and the funders and researchers that they serve. The programme contains a mix of practical tutorials given by experts in the field, presentations from cutting-edge projects and research, posters from the community, breakout discussion groups, and an intense social programme which has helped to build a strong network amongst previous participants. The event is almost unique in bringing together these scholarly communication communities and is proud to continue this tradition with the OAI5 workshop in 2007.