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Canada Open Data PortalSearch open data that is relevant to Canadians, learn how to work with datasets, and see what people have done with open data across the country.
DataONEDataONE is a network of interoperable data repositories facilitating data sharing, data discovery, and open science.
EU Open Data PortalThe EU Open Data Portal is the point of access to public data published by the EU institutions, agencies and other bodies. Information can be used and reused for commercial or non‑commercial purposes. The portal is a key instrument of the EU open data strategy.
FiveThirtyEight DataThe data and code behind some of the articles and graphics on the popular website.
Google Dataset SearchGoogle Dataset Search is a search engine from Google that helps researchers locate online data that is freely available for use. The product is targeted at scientists and data journalists.
NASA Open Data CatalogDATA.NASA.GOV is NASA's clearinghouse site for open-data provided to the public. An API is available to developers at api.nasa.gov
National Oceanic and Atmospheric Administration [NOAA]Climate Data Online (CDO) provides free access to NCDC's archive of global historical weather and climate data in addition to station history information. These data include quality controlled daily, monthly, seasonal, and yearly measurements of temperature, precipitation, wind, and degree days as well as radar data and 30-year Climate Normals.
NYC Open DataNYC Open Data is free public data published by New York City agencies and other partners.
QuandlSome free financial, economic and alternative datasets. Quandl has free open data feeds and the API for stock data is free for registered users.
U.K. data.gov.ukCensus data and more-- find data published by central government, local authorities and public bodies to help you build products and services