Content Provider
Memorial University of Newfoundland: Digital Archives Initiative (DAI)
5,285
Memorial University of Newfoundland: Research Repository
1,183
DataCite Metadata Store (German National Library of Science and Technology)
434
Unknown
301
Directory of Open Access Journals: DOAJ Articles
295
Biodiversity Heritage Library (BHL)
270
PubMed Central (PMC)
237
Canadian Science Publishing (via Crossref)
129
SAGE Publications (via Crossref)
93
ScienceDirect (Elsevier - via Crossref)
91
University of New Brunswick: Centre for Digital Scholarship Journals
90
Wiley Online Library (via Crossref)
74
Theses Canada/Thèses Canada (Library and Archives Canada)
70
Hathi Trust Digital Library
68
Springer Nature (via Crossref)
60
Defense Technical Information Center: DTIC Technical Reports database
53
Memorial University of Newfoundland: Electronic Journals
53
University of Calgary Journal Hosting
53
Cambridge University Press
52
HighWire Press (Stanford University)
49
Érudit.org (Université Montréal)
49
MDPI Open Access Publishing
43
Informa (via Crossref)
40
Zenodo
39
Saint Mary's University, Halifax: Institutional Repository
37
University of Michigan: Digital Collections
31
Dalhousie University: DalSpace Institutional Repository
29
The Portal to Texas History (University of North Texas)
26
Wiley Online Library
26
Oxford University Press (via Crossref)
25
BioMed Central
24
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
23
WikiBooks - Open-content textbooks
23
National Research Council Canada: NRC Publications Archive
22
University of Toronto: Research Repository T-Space
22
Arca (BC's Digital Treasures)
20
Canadian Science Publishing
20
University of British Columbia: cIRcle - UBC's Information Repository
20
Athabasca University Digitization Portal
19
LeibnizOpen (The Leibniz Association)
19
Cambridge University Press (via Crossref)
18
PANGAEA - Data Publisher for Earth & Environmental Science
17
PRISM - University of Calgary Digital Repository
16
Project Gutenberg (PG)
16
ScienceDirect (Elsevier)
16
University of Waterloo, Canada: Institutional Repository
16
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
15
Queen's University, Ontario: QSpace
15
University of the Highlands and Islands: Research Database of UHI
15
uO Research (University of Ottawa - uOttawa)
15
more ...