Face à atual situação de confinamento social, o IEM compilou uma série de recursos abertos de consulta livre. Estão disponíveis a todos os interessados. Esta informação foi atualizada a 1 de maio de 2020.

Amsterdam University Press
Archive.org
Archaeological Heritage Network, ArcHerNet
Archaeopress
ARTSTOR (Public Collections)
Bibliotheca Hertziana (The Bibliotheca Hertziana’s digitized rare books)
Bloomsbury Digital Resources
Cambridge University Press textbooks (mediante requisição)
Casa de Velázquez
Coptic Dictionary Online
Datenbank-Infosystem (Arqueologia, História da Arte, Musicologia)
Directory of Open Access Books
Directory of Open Access Journals
De Gruyter
DergiPark
Deutsche Nationalbibliothek (DNB)
Deutsches Nationalkomitees e.V.
Digitalisierte Bestände der SUB Hamburg
Digitalisierte Sammlungen der Staatsbibliothek Berlin 
Directory of Open Access Books
Durham University
Edition Topoi
Edizioni Ca’Foscari
Elektronische Zeitschriftenbibliothek (EZB)
Extension Unpaywall: Der schnelle Weg zur Open-Access-Version (offene Zweitveröffentlichungen)
Gallica
German Archaeological Institute
iDAI.bibliography/Zenon
iDAI.objects/arachne
iDAI.publications
Humboldt-Universität
Institut français du Proche-Orient
Liverpool University Press
JSTOR
Leuven University Press
LIBRUM Publishers & Editors
MIRABILE – Archivio digitale della cultura medievale
National Emergency Library at the Internet Archive
Taylor and Francis Group
The Index of Medieval Art
OAPEN Library
Open-access Classics resources des Institute of Classical Studies
Open Edition
Oriental Institute, University of Chicago
Oxford Academic
Oxford University Press
Oxford Scholarship Online (ebooks da editora, até ao dia 31 de maio)
Mais informações: https://www.fcsh.unl.pt/faculdade/informatica/acesso-a-e-books-e-bases-de-dados-de-artigos-cientificos/
Otzar HaHochma (Judaic Books)
Project MUSE at Johns Hopkins University
Propylaeum
Sidestone Press
TU Berlin
Universität Dresden
University of Michigan Press (e-books)
Verlag der Österreichischen Akademie der Wissenschaften
Zentrales Verzeichnis digitalisierter Drucke (ZVDD)