Content Provider
PANGAEA - Data Publisher for Earth & Environmental Science
8,056
DataCite
4,106
DataCite Metadata Store (German National Library of Science and Technology)
1,196
NOAA NCEI Environmental Data Archive (via DataONE)
651
Defense Technical Information Center: DTIC Technical Reports database
649
Unknown
177
Research Data Australia (Australian National Data Service - ANDS)
158
Directory of Open Access Journals: DOAJ Articles
157
Zenodo
121
Arctic Data Center (via DataONE)
104
Digital.CSIC (Spanish National Research Council)
90
USGS Science Data Catalog (via DataONE)
89
DataverseNO
61
Instituto Español de Oceanografía: e-IEO
61
Frontiers: Figshare
43
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
42
MDPI Open Access Publishing
42
Université de Nantes: HAL-UNIV-NANTES
34
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
33
Institute for Marine Research: Brage IMR
33
University of Calgary Journal Hosting
31
CyberLeninka (Scientific Electronic Library)
29
Norwegian Institute for Water research: NIVA Open Access Archive (Brage)
27
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications
25
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
24
Ghent University Academic Bibliography
23
Institut national des sciences de l'Univers: HAL-INSU
22
LeibnizOpen (The Leibniz Association)
22
Research Workspace (via DataONE)
16
University of the Highlands and Islands: Research Database of UHI
15
Tomsk Polytechnic University (TPU): Electronic Archive
14
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP)
13
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR
13
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen)
13
Technical University of Denmark: DTU Orbit
13
Biodiversity Heritage Library (BHL)
12
Columbia University: Academic Commons
12
Dryad Digital Repository (Duke University)
12
Memorial University of Newfoundland: Digital Archives Initiative (DAI)
12
University of California: eScholarship
12
University of Tromsø: Munin Open Research Archive
12
Universitat Politècnica de Catalunya, BarcelonaTech: UPCommons - Global access to UPC knowledge
11
University of St Andrews: Research Portal
11
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
10
Digital Commons University of South Florida (USF)
10
University of Groningen research database
10
University of South Florida St. Petersburg: Digital USFSP
10
University of Tasmania: UTas ePrints
10
Australian National University: ANU Digital Collections
9
NORA (National aggregator of open repositories of Russian universities)
9
more ...