Countries and the world
- World Bank Open Data (data.worldbank.org): population, GDP, life expectancy, internet use and hundreds more indicators for every country, back to 1960.
- Our World in Data (ourworldindata.org): clean, well-documented charts on health, energy, climate and living standards. Every chart has a CSV download.
- UN Population Division: World Population Prospects for country populations and projections to 2100, and World Urbanization Prospects for cities.
- IMF World Economic Outlook: GDP and growth forecasts for the next few years.
Money and markets
- FRED from the St. Louis Fed (fred.stlouisfed.org): prices, wages, interest rates, stock indexes and inflation, all downloadable as CSV.
- The Economist's Big Mac index on GitHub: burger prices as a fun currency gauge since 2000.
- Company investor-relations pages: subscriber counts, deliveries and revenue from quarterly reports.
Energy and climate
- Ember: electricity generation by source and country.
- Energy Institute Statistical Review of World Energy: oil, gas, coal and renewables since 1965.
- Global Carbon Project via Our World in Data: CO₂ emissions by country.
Sports, culture and the internet
- Wikipedia list pages (champions, records, medal tables): paste the table straight in; footnote markers are removed automatically.
- Sports Reference sites (basketball, football, baseball): season-by-season stats.
- StatCounter Global Stats: browser, search engine and device market share, with CSV export.
- Your own analytics: follower counts, sales and sign-ups make the most personal chart videos.
How to check a dataset before you post
- Read the definition: 'city' and 'metro area' give very different numbers.
- Check the units and whether values are adjusted for inflation or prices.
- Look at the latest year: it is often incomplete or provisional.
- Credit the source on screen and in your caption.