This paper will describe the development of Institutional Repositories (IRs) in Irish third level institutions – starting with the development of stand-alone repositories in the mid 2000’s and the move later in that decade towards collaboration and resources sharing through the development of National Research Portals and also Learning Resource Portals. We will briefly look at the various institutional repositories in existence in Ireland and also National Portals such as RIAN which are helping to make Irish research more visible and accessible. Some important European Union initiatives will also be dealt with and finally we will look briefly at the NDLR – Ireland’s National Digital Learning Repository.