Content Provider
Memorial University of Newfoundland: Digital Archives Initiative (DAI)
5,015
University of Michigan: Digital Collections
4,386
DataCite Metadata Store (German National Library of Science and Technology)
2,134
University of Wisconsin, Milwaukee: UWM Libraries Digital Collections
1,373
Memorial University of Newfoundland: Research Repository
272
Directory of Open Access Journals: DOAJ Articles
165
Unknown
130
PubMed Central (PMC)
124
RePEc (Research Papers in Economics)
51
Biological and Chemical Oceanography Data Management Office (BCO-DMO) (via DataONE)
37
Wiley Online Library
37
MDPI Open Access Publishing
28
The Portal to Texas History (University of North Texas)
28
Springer Nature (via Crossref)
27
Cambridge University Press
25
Saint Mary's University, Halifax: Institutional Repository
22
Hathi Trust Digital Library
21
WikiBooks - Open-content textbooks
20
Érudit.org (Université Montréal)
20
Arca (BC's Digital Treasures)
19
LeibnizOpen (The Leibniz Association)
19
BioMed Central
17
Theses Canada/Thèses Canada (Library and Archives Canada)
17
University of Calgary Journal Hosting
17
SAGE Publications (via Crossref)
16
ScienceDirect (Elsevier - via Crossref)
16
Borealis
15
University of Toronto: Research Repository T-Space
15
VIURRSpace (Royal Roads University and Vancouver Island University)
14
Memorial University of Newfoundland: Electronic Journals
13
SAGE Publications
13
Arctic Data Center (via DataONE)
12
Canadian Science Publishing (via Crossref)
11
HighWire Press (Stanford University)
11
NOAA NCEI Environmental Data Archive (via DataONE)
11
National Research Council Canada: NRC Publications Archive
11
Pensoft Publishers
11
University of Lethbridge Digitized Collections
11
University of New Brunswick: Centre for Digital Scholarship Journals
11
uO Research (University of Ottawa - uOttawa)
11
Dalhousie University: DalSpace Institutional Repository
10
Queen's University, Ontario: QSpace
10
Schulich Scholars (Schulich School of Law, Dalhousie University)
10
UNESDOC - UNESCO Digital Library
10
University of British Columbia: cIRcle - UBC's Information Repository
9
University of Florida: Digital Library Center
9
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
8
Oxford University Press (via Crossref)
8
The Canadian Field-Naturalist (E-Journal)
8
University of Waterloo, Canada: Institutional Repository
8
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