Open data portal of Massachusetts state government.
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.
massbank.eu
Dataset repository covering basic in biology and medicine, with searchable datasets.
odin.jrc.ec.europa.eu
Search engineering data collections and supporting datasets from EEC.
archive.materialscloud.org
Searchable repository for finding chemical solid state and surface datasets and software.
materialsdatafacility.org
Find and access chemistry research data, with indexed datasets.
mdr.nims.go.jp
Dataset repository covering chemistry, with searchable dataset.
next-gen.materialsproject.org
Searchable repository for finding engineering datasets and datasets.
mat.savba.sk
Digital library for searching books, documents, images and online collections.
mathrepo.mis.mpg.de
Research data portal for exploring mathematics records, including datasets.
mathscinet.ams.org
Bibliographic database of the Mathematical Reviews journal.
matilda.science
Search engine and bibliometric tool for open science.
mdu.repo.nii.ac.jp
Search an online collection of books, documents, media and archival records.
matsutan.repo.nii.ac.jp
Search an online collection of books, documents, media and archival records.
matsumoto-u.repo.nii.ac.jp
Digital library for searching books, documents, images and online collections.
matsuyama-u-r.repo.nii.ac.jp
Find digitized publications and collection items through an online library.
classicmayan.kor.de.dariah.eu
Find and access ancient cultures research data, with indexed datasets.
dataverse.whoi.edu
Dataset repository covering acoustics, with searchable geospatial data.
digital.library.mcgill.ca
Web-based archive of primary materials related to Canadian Corporate.
nlte.nist.gov
Search chemistry data collections and supporting text from USA.
mobilithek.info
Open Data Portal of the Federal Ministry of Transport and Digital Infrastructure (BMVI), Germany.
mdsoar.org
Browse research datasets and datasets related to engineering.
mdw.ac.at
Search acoustics data collections and supporting datasets from AUT.
meclivros.mec.gov.br
Browse digitized texts, images, archives and cataloged cultural materials.
mediacloud.org
Search and analyze news coverage across large collections of global media sources.