This survey of the achievements of the Research Libraries Group (RLG) and its Art and Architecture Group shows the effectiveness of a collaborative approach in developing best practices and standards, and implementing new methodologies and technologies, to benefit the international art library and research communities. RLG members in Europe, North America and Australia include many of the major art research libraries. RLG offers services such as the RLIN bibliographic database and the MARCADIA retrospective conversion service in conjunction with projects documenting sales catalogue records (SCIPIO), preserving serials (the Art Serials Preservation Project) and facilitating the interloan of material between members. More recently the partnership between the RLG and the Getty Information Institute has made available an enormous range of art documentation work carried out by the Getty: standards and authority control work such as the Art & Architecture Thesaurus, the Union List of Artists’ Names and the Thesaurus of Geographic Names. In the 1980s the RLG conducted a survey identifying information needs in the humanities, which has led to resources such as the Bibliography of the History of Art becoming widely accessible, with the Provenance Index to follow shortly. This partnership is now active in the museum field, attempting to bridge the gap between the domains of secondary and primary materials in the field of art research. The REACH project (Record Export for Art and Cultural Heritage) is experimenting with the export of existing machine-readable data from heterogeneous museum collection systems, and testing the feasibility of designing a common interface for access which will complement RLG’s other resources.