Public datasets

General Public Datasets:

Google Cloud Datasets:

Google Public Data explorer

Google BigQuery Public datasets

Google Genomics Public datasets

Geo Imagery Datasets

Kaggle

Tableau 

IBM Knowledge Center

Microsoft Data Science for Research

Microsoft Azure

Microsoft Learning to Rank Datasets

Yelp datasets challenge

Facebook

Amazon Web Services Reddit

Yahoo!

GitHub (awesome public datasets)

GitHub (awesome datasets)

StackExchange

Quora (What are some good toy problems in data science?)

Quora (Where can I find large datasets open to the public?)

Data.gov

NASA

National Oceanic and Atmospheric Association

US Government Web Services and XML Data Sources

DataShop at Carnegie Mellon University

Stanford Large Network Dataset Collection

University of California in Irvine

Massachusettes Institute of Technology

R-dir

BigML 

BigML2

Data Planet

Global Big Data Conference

Journal of Statistical Education Data Archive

KDNuggets

Data Science Central

Enigma

The Datahub

Data.world

Data Portals

PB Works (scientific datasets)

Space telescope (datasets for education and for fun)

Re3data (registry repository of research data repositories)

Quandl

LinkedData

Metadata Search

Figshare

30+ Free Data Sources every company should be aware of: 

  1. Data.gov http://data.gov The US Government pledged last year to make all government data available freely online. This site is the first stage and acts as a portal to all sorts of amazing information on everything from climate to crime.
  2. US Census Bureau http://www.census.gov/data.html A wealth of information on the lives of US citizens covering population data, geographic data and education.
  3. Socrata is another interesting place to explore government-related data, with some visualisation tools built-in.
  4. European Union Open Data Portal http://open-data.europa.eu/en/data/ As the above, but based on data from European Union institutions.
  5. Data.gov.uk http://data.gov.uk/ Data from the UK Government, including the British National Bibliography – metadata on all UK books and publications since 1950.
  6. Canada Open Data is a pilot project with many government and geospatial datasets.
  7. Datacatalogs.org offers open government data from US, EU, Canada, CKAN, and more.
  8. The CIA World Factbookhttps://www.cia.gov/library/publications/the-world-factbook/ Information on history, population, economy, government, infrastructure and military of 267 countries.
  9. Healthdata.gov https://www.healthdata.gov/ 125 years of US healthcare data including claim-level Medicare data, epidemiology and population statistics.
  10. NHS Health and Social Care Information Centre http://www.hscic.gov.uk/home Health data sets from the UK National Health Service.
  11. UNICEF offers statistics on the situation of women and children worldwide.
  12. World Health Organisation offers world hunger, health, and disease statistics.  
  13. Amazon Web Services public datasets http://aws.amazon.com/datasets Huge resource of public data, including the 1000 Genome Project, an attempt to build the most comprehensive database of human genetic information and NASA’s database of satellite imagery of Earth.
  14. Facebook Graph https://developers.facebook.com/docs/graph-api Although much of the information on users’ Facebook profile is private, a lot isn’t – Facebook provide the Graph API as a way of querying the huge amount of information that its users are happy to share with the world (or can’t hide because they haven’t worked out how the privacy settings work).
  15. Face.com: A fascinating tool for facial recognition data.
  16. UCLA makes some of the data from its courses public.
  17. Data Market is a place to check out  data related to economics, healthcare, food and agriculture, and the automotive industry.
  18. Google Public data explorer includes data from world development indicators, OECD, and human development indicators, mostly related to economics data and the world.
  19. Junar is a data scraping service that also includes data feeds.
  20. Buzzdata is a social data sharing service that allows you to upload your own data and connect with others who are uploading their data.
  21. Gapminder http://www.gapminder.org/data/ Compilation of data from sources including the World Health Organisation and World Bank covering economic, medical and social statistics from around the world.
  22. Google Trends http://www.google.com/trends/explore Statistics on search volume (as a proportion of total search) for any given term, since 2004.
  23. Google Finance https://www.google.com/finance 40 years’ worth of stock market data, updated in real time.
  24. Google Books Ngramshttp://storage.googleapis.com/books/ngrams/books/datasetsv2.html Search and analyse the full text of any of the millions of books digitised as part of the Google Books project.
  25. National Climatic Data Center http://www.ncdc.noaa.gov/data-access/quick-links#loc-clim Huge collection of environmental, meteorological and climate data sets from the US National Climatic Data Center. The world’s largest archive of weather data.
  26. DBPedia http://wiki.dbpedia.org Wikipedia is comprised of millions of pieces of data, structured and unstructured on every subject under the sun. DBPedia is an ambitious project to catalogue and create a public, freely distributable database allowing anyone to analyse this data.
  27. New York Times http://developer.nytimes.com/docs Searchable, indexed archive of news articles going back to 1851.
  28. Freebase http://www.freebase.com/ A community-compiled database of structured data about people, places and things, with over 45 million entries.
  29. Million Song Data Set http://aws.amazon.com/datasets/6468931156960467 Metadata on over a million songs and pieces of music. Part of Amazon Web Services.
  30. UCI Machine Learning Repository is a dataset specifically pre-processed for machine learning.
  31. Financial Data Finder at OSU offers a large catalog of financial data sets.
  32. Pew Research Center offers its raw data from its fascinating research into American life.
  33. The BROAD Institute offers a number of cancer-related datasets.

Educational Data:

National Center for Education Statistics

Data.Ed.Gov (US Department of Education)

Public School Universe Survey

Data.gov Education

US Department of Education

Word Bank Education data

SOLAR (Society for Learning Analytics Research) 

Open University Learning Analytics dataset

Educational Data Mining

Regional:

Azerbaijan datasets from Data.world

Open Data Russia

Turkish Statistical Institute

Open Data Government Platform India

South African Higher Education Open Data

Kenya open data

Queensland Government

Text Analytics:

SentiWordNet

WordNet (lexical database)

Vector models:

Google's Word2vec 

GloVe model - global vectors for word representations

Facebook's fasttext 

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