Content Provider
Memorial University of Newfoundland: Digital Archives Initiative (DAI)
5,285
Memorial University of Newfoundland: Research Repository
1,186
DataCite Metadata Store (German National Library of Science and Technology)
422
Directory of Open Access Journals: DOAJ Articles
335
Unknown
301
Biodiversity Heritage Library (BHL)
271
PubMed Central (PMC)
246
Wiley Online Library
128
Memorial University of Newfoundland: Electronic Journals
120
University of New Brunswick: Centre for Digital Scholarship Journals
94
Canadian Science Publishing (via Crossref)
90
Hathi Trust Digital Library
90
ScienceDirect (Elsevier - via Crossref)
86
Canadian Science Publishing
80
Theses Canada/Thèses Canada (Library and Archives Canada)
70
Cambridge University Press
65
SAGE Publications
62
SAGE Publications (via Crossref)
60
Springer Nature (via Crossref)
60
University of Calgary Journal Hosting
54
Defense Technical Information Center: DTIC Technical Reports database
53
Érudit.org (Université Montréal)
50
HighWire Press (Stanford University)
49
MDPI Open Access Publishing
43
Project Gutenberg (PG)
41
Zenodo
39
Saint Mary's University, Halifax: Institutional Repository
37
WikiBooks - Open-content textbooks
35
Oxford University Press
31
University of Michigan: Digital Collections
31
Queen's University, Ontario: QSpace
30
Dalhousie University: DalSpace Institutional Repository
29
Informa
28
DataCite
27
The Portal to Texas History (University of North Texas)
27
Informa (via Crossref)
25
BioMed Central
24
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
23
Oxford University Press (via Crossref)
23
PANGAEA - Data Publisher for Earth & Environmental Science
23
National Research Council Canada: NRC Publications Archive
22
University of Toronto: Research Repository T-Space
22
Arca (BC's Digital Treasures)
21
VIURRSpace (Royal Roads University and Vancouver Island University)
21
LeibnizOpen (The Leibniz Association)
20
University of British Columbia: cIRcle - UBC's Information Repository
20
Athabasca University Digitization Portal
19
Wiley Online Library (via Crossref)
19
PRISM - University of Calgary Digital Repository
17
University of the Highlands and Islands: Research Database of UHI
17
more ...