Box of Broadcasts - www.sheffield.ac.uk/library/cdfiles/bob
Britain on Film (BFI) - player.bfi.org.uk/britain-on-film
European Film Gateway - www.europeanfilmgateway.eu/
Prelinger Archive - archive.org/details/prelinger
International Federation of Film Archives - www.sheffield.ac.uk/library/cdfiles/ifarch a useful discovery tool for film archive collections.
British Library Sounds - www.sheffield.ac.uk/library/cdfiles/sounds
Irish Traditional Music Archive - www.itma.ie/digital-library
Comprehensive guide to the digital archive news sources at The University Library: www.sheffield.ac.uk/library/subjects/newspapers
Archives Hub is a collection of unique sources, both physical and digital: archiveshub.jisc.ac.uk/