Over the years I have collected free Data Source links and assembled my favorites. I have collected these from stumbling on them and some from colleagues. Enjoy! Updated 02/25/2017.
Data Collectors
- National Weather Service Data Collector https://github.com/thesqlgeek/WeatherData
World
- The World Bank http://www.worldbank.org/
- Gapminder http://www.gapminder.org/data/
- United Nations Datasets http://data.un.org/
- International Monetary Fund http://www.imf.org/external/data.htm
- Open Spending https://openspending.org/
- CIA World Factbook https://www.cia.gov/library/publications/the-world-factbook/
- NOAA/NCEI weather and climate data http://www.ncdc.noaa.gov/
Government
- Data.gov http://www.data.gov/ (So much awesome data!)
- Federal Reserve Economic Research https://research.stlouisfed.org/fred2/
- USNO Astronomical Applications http://aa.usno.navy.mil/data/index.php
- U.S. Federal Statistics Data http://fedstats.sites.usa.gov/data-releases/
- U.S. Bureau of Labor Statistics http://www.bls.gov/
- U.S. Federal Agency Expenditures https://www.usaspending.gov/
- U.S. Energy Information Administration http://www.eia.gov/
- U.S. Census Bureau Data http://www.census.gov/
- U.S. Department of Health & Human Services https://www.healthdata.gov/
- U.S. Department of Education http://www2.ed.gov/
- OSCAR data.gov.uk https://data.gov.uk/dataset/oscar
- Earthquake Data http://earthquake.usgs.gov/data/
- European Union Open Data Portal http://open-data.europa.eu/en/data/
- Eurostat European Statistics http://ec.europa.eu/eurostat/data/database
Health
- Disease Data http://www.tycho.pitt.edu/data/level2.php
- CDC http://www.cdc.gov/ncbddd/disabilityandhealth/datasets.html
Data Mining
- UC Irvine Machine Learning list of data mining sets
- KD Nuggets list of data mining sets
- BigML list of data mining sets
Astronomical Datasets (One of my hobbies)
- Project Pluto http://www.projectpluto.com/datasets.htm
Miscellaneous and More Lists
- Azure Data Marketplace http://datamarket.azure.com/browse/Data
- Amazon Web Services Public Data http://aws.amazon.com/datasets
- Google Public Data https://www.google.com/publicdata/directory
- Google Trends http://www.google.com/trends/explore
- Freebase People, Places, and Things http://www.freebase.com/
- Datahub 10K+ collection of datasets https://datahub.io/
- Github Public Datasets https://github.com/caesar0301/awesome-public-datasets
- Million Song Data Set http://aws.amazon.com/datasets/6468931156960467
- ESPN Sports API http://espn.go.com/apis/devcenter/
- Sports Reference Data http://www.sports-reference.com/