opentopography.org
Browse research datasets and geospatial data related to geography.
Directory
Search & Discovery
Search and Discovery gathers the tools people use to find things online. Dataset and data search covers portals that index public data, statistics, and open government records. Academic and research search looks through papers, citations, and scholarly archives, while general search engines and their tools cover everything from operator guides to alternative engines. Metasearch services query several engines at once, and image search, media search, and curated web directories fill in the specialised cases. News search, file and open directory search, and product and shopping search cover narrower needs. Topic names describe what each service searches, so you can tell a citation index from a general web engine before you open it. Some entries are experiments rather than finished products, so expect a mixed level of polish.
opentrials.net
Find data collections, study records and related research documentation.
openvan.camp
Multilingual vanlife and motorhome news aggregator.
openverse.org
Search openly licensed images and audio from cultural, educational and media collections.
openworm.org
Searchable repository for finding basic in biology and medicine datasets and moving image.
catalog.opgc.uca.fr
Research data portal for exploring atmospheric records, including datasets.
emmaboda.se
Open data portal for searching and downloading public datasets.
actrec.gov.in
Research data portal for exploring basic in biology and medicine records, including datasets.
orangebot.ai
Daily AI and tech news aggregator website.
orbi.uliege.be
Institutional repository of the University of Liège.
orcabook.com
Find scholarly literature and bibliographic records using structured search fields.
Research data portal for exploring biology records, including experimental data.
ordar.otelo.univ-lorraine.fr
Research data portal for exploring analytical chemistry records, including datasets.
data.oregon.gov
Browse government and civic datasets for Oregon, United States.
oregondigital.org
Digital archive portal in Oregon, US.
oregonpoeticvoices.org
Digital archive of poetry readings by Oregon poets.
orfee.hepl.ch
Repository of HEP Vaud, Switzerland.
organic-chemistry.org
Searchable repository for finding chemistry datasets and datasets.
ortholugedb.ca
Searchable repository for finding basic in biology and medicine datasets and datasets.
orthomcl.org
Research data portal for exploring basic in biology and medicine records, including datasets.
ortolang.fr
Search humanities data collections and supporting dataset from FRA.
orust.se
Open data portal for searching and downloading public datasets.
osaka-aoyama.repo.nii.ac.jp
Search an online collection of books, documents, media and archival records.
ogu.repo.nii.ac.jp
Browse digitized texts, images, archives and cataloged cultural materials.