Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
2,882
PANGAEA - Data Publisher for Earth & Environmental Science
632
Natural Environment Research Council: NERC Open Research Archive
488
Directory of Open Access Journals: DOAJ Articles
386
IEDA: Marine-Geo Digital Library (via DataONE)
334
Unknown
270
Cambridge University Press
197
Open Parks Network
178
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
172
Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires)
168
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
157
Zenodo
144
Digital.CSIC (Spanish National Research Council)
133
PubMed Central (PMC)
112
Wiley Online Library
106
Frontiers: Figshare
93
Copernicus Publications: E-Journals
90
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
75
Arctic Data Center (via DataONE)
69
MDPI Open Access Publishing
66
IEDA: US Antarctic Program Data Center (via DataONE)
63
Niedersächsisches Online-Archiv NOA
61
University of California: eScholarship
59
eCite UTAS (University of Tasmania)
50
Université de Nantes: HAL-UNIV-NANTES
48
Utrecht University Repository
48
Research Data Australia (Australian National Data Service - ANDS)
46
Institut national des sciences de l'Univers: HAL-INSU
45
Dryad Digital Repository (Duke University)
41
Universidad Nacional de La Plata (UNLP): SeDiCI (Servicio de Difusión de la Creación Intelectual)
39
Australian National University: ANU Digital Collections
38
California State University (CSU): DSpace
36
University of Tasmania: UTas ePrints
36
University of Southampton: e-Prints Soton
35
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
32
Springer Nature (via Crossref)
31
Universidad de Chile: Repositorio académico
31
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
29
National Institute of Polar Research Repository, Japan
29
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
28
Apollo - University of Cambridge Repository
26
University of Liège: ORBi (Open Repository and Bibliography)
26
Swedish National Data Service (SND)
25
University of Bristol: Bristol Research
25
Vernadsky National Library of Ukraine: DSpace
24
Biological and Chemical Oceanography Data Management Office (BCO-DMO) (via DataONE)
23
University of Groningen research database
23
HighWire Press (Stanford University)
22
White Rose Research Online (Universities of Leeds, Sheffield & York)
22
Durham University: Durham Research Online
21
more ...