Data & official records
Basketball-Reference
basketball-reference.com
Data & official recordsfree + paid
NBA statistics back to the league's founding, including advanced metrics. Player and team pages import as Website sources.
Also part of Sports Reference, it carries the NBA's full statistical record plus advanced metrics like win shares and PER, useful for notebooks debating player value across eras. Those advanced stats use the site's own formulas, which don't always match figures from the NBA's official stats site or other analytics providers, so it's worth noting which source a number came from.
Import into Gemini Notebook
- 1Copy the link above (or a specific page from the site).
- 2In your notebook, click Add source → Website.
- 3Paste the link and confirm — several links can be pasted at once, one per line.
Gemini Notebook is a reading tool, not a spreadsheet engine — feed it the written reports and summary pages, not raw CSVs, and ask about what the documents say.
More data & official records sources
- World Bank Open DataDevelopment and economic indicators for every country, each with a written overview page that imports cleanly.
- IMF Data & ReportsMacroeconomic outlooks and country reports — the Article IV PDFs are dense, citable source material.
- OECD DataComparative statistics and policy reports across member economies, with strong methodology notes.
- SEC EDGAREvery US public company filing — 10-Ks and 10-Qs make excellent grounded sources for company research.
- Our World in DataLong-form, sourced explainers on global trends — article pages import with their context intact.
- Baseball SavantStatcast data for MLB — pitch tracking, exit velocity, player pages. Export search results as CSV and upload them for stat-grounded notebooks.
- Baseball-ReferenceComplete MLB history: stats, box scores, and standings back to the 1800s. Player and season pages paste in well as Website sources.
- Bureau of Transportation StatisticsOfficial US transportation statistics — freight, aviation, border crossings. Download tables as CSVs or grab the report PDFs.
- CLARIN Virtual Language ObservatoryFinder for language corpora and tools held by European research centres. Use it to locate a resource, then import its documentation or texts.
- data.europa.euThe EU's open data portal spanning member states and institutions. Dataset description pages give Gemini Notebook useful context even when the data itself is CSV.
- Data.govUS federal open data catalog with hundreds of thousands of datasets. Import a dataset's landing page as a Website source to ground answers about the data.
- DryadOpen repository of curated research datasets, heaviest in biology and medicine. Each dataset's landing page and README summarize methods and variables.
- EurostatOfficial EU statistics on economy, population and society. The Statistics Explained articles summarize each dataset and import neatly as Website sources.
- FBrefDeep soccer statistics — player and team tables, match logs and advanced metrics like xG. Stat pages import as Website sources for sports analysis.
- FigshareRepository where researchers publish datasets, figures, code and posters with citable DOIs. Useful for finding the supplementary material behind papers.
- GADMFree downloadable maps of administrative boundaries for every country, down to municipality level. The standard reference for GIS work and spatial joins.
- Google Dataset SearchSearches dataset metadata across thousands of repositories. Use it to locate the source, then import that repository's documentation pages rather than raw data files.
- IPUMS InternationalCensus microdata from 100+ countries recoded into consistent variables. Free with registration; the variable documentation pages make useful sources.
- Kaggle DatasetsCommunity-uploaded datasets on nearly any topic. Import the dataset description and discussion pages for context; raw data files aren't notebook sources.
- Mendeley DataRepository of research datasets deposited alongside published papers. Handy for pulling the raw data behind a study you've already added to a notebook.
- NCAA StatisticsOfficial team and player numbers for US college sports, season by season. Export tables to CSV for upload rather than pasting the stats pages directly.
- Open Science FrameworkWhere researchers post preregistrations, preprints, and project files. Project pages often hold the materials and data a published paper leaves out.
- StatistaAggregated market and consumer statistics on tens of thousands of topics. Free tier shows headline charts; note the original source each chart cites.
- U.S. Census BureauSearch US demographic, housing, and business tables. Export a table or import a topic profile page to ground population and market-sizing questions.
- UCI ML RepositoryLong-running archive of benchmark datasets for machine learning. Each dataset page documents variables and provenance — import the page, not the raw CSV.
- UN DataOne search box over statistics from dozens of UN agencies — population, health, trade, development. A quick starting point for country-level figures.
- UNECE Transport StatisticsRoad, rail, and inland-waterway transport figures for Europe and nearby regions, served as PXWeb tables you can export to CSV.
- UNESCO Institute for StatisticsOfficial education, science, and culture indicators for most countries, including SDG tracking. Good grounding for cross-country education comparisons.
- Wolfram AlphaComputes answers to math, science, and factual queries rather than linking to pages. Better as a fact-checking sidekick than an importable source.
- ZenodoCERN-run repository where researchers deposit datasets, software, and reports with DOIs. Record pages and their attached PDFs both import easily.