There are a number of open source repositories and databases that offer journal articles, books and theses.
Directory of Open Access Books - DOAB increases the discoverability of Open Access books.
Directory of Open Access Journals - DOAJ is an online directory that indexes and provides access to quality open access, peer-reviewed journals.
ERIC Institute of Education Services - ERIC is an online library of education research and information, sponsored by the Institute of Education Sciences (IES) of the U.S. Department of Education.
OAPEN Library - The OAPEN Library contains freely accessible academic books, mainly in the area of humanities and social science.
Open Book Publishers - OPB publish high-quality, open access academic research in the Humanities and Social Sciences.
Springer Open - Springer Open offers researchers from all areas of science, technology, medicine, the humanities and social sciences a place to publish open access in journals and books.
Wiley Open - Wiley Open Access is a programme of fully open access journals.
DORAS – Open access institutional repository providing free online access to research publications and theses from Dublin City University.
CORA – The Cork Open Research Archive, gives you free open access to University College Cork's scholarly and scientific research publications and theses.
ARROW - The repository is a service of the Dublin Institute of Technology Library Services.
NCSE – Information on research and policy publications in the field of special education on the island of Ireland since 2009, from the National Council of Special Education.
ARAN - ARAN is the digital collection of open access scholarly publications from NUI Galway. ARAN collects, preserves and makes freely available scholarly communication, including peer-reviewed articles, working papers and conference papers and conference papers created by NUI Galway researchers.
TARA - TARA is an open access repository from Trinity College Dublin.
RIAN – An expansive portal to Irish research, including an aggregation of content from a number of institutional repositories e.g. University of Limerick, NUI Maynooth, Higher Education Authority etc.