This paper describes the conception, development and evolution of the SHARE Catalogue, which was designed to integrate the bibliographic data of the institutions participating in the SHARE Consortium in a collective catalogue of linked open data. Among the recent processes concerning the catalogue, this article analyses both the UNIMARC-BIBFRAME 2.0 mapping, managed by an inter-university technical group, and its ongoing transposition into a dedicated Wikibase instance. The different and successive stages of the platform are described in order to highlight its proximity to the collaborative practices promoted in the context of the Share Family, and to affirm how crucial these practices are for an effective representation of cultural resources in the web of data, in line with the requirements of quality and re-use of the information produced by the institutions, and long-term sustainability.