Best sources overall for AI citation by Modern Citation Reference

Same 25 sources, re-sorted by Modern Citation Reference only — different signal than the composite Index. The leader changes: DOI (CrossRef Resolver) takes the top position at A+ · 98.

1. 1
   DOI (CrossRef Resolver)doi.org↑2

   International standard identifier resolver for academic citations (~150M+ DOIs).

   Modern Reference A+ · 98·Index A+ · 95·Academic
   A+·98
2. 2
   U.S. Securities and Exchange Commissionsec.gov↓1

   Primary-source regulator publishing every public-company filing (13F, 10-K, 8-K, etc.) since 1934.

   Modern Reference A+ · 95·Index A+ · 96·Government
   A+·95
3. 3
   MDN Web Docsdeveloper.mozilla.org↑11

   Mozilla-stewarded web-platform reference since 2005; default citation for HTML, CSS, JS, Web APIs.

   Modern Reference A+ · 95·Index A · 93·Reference
   A+·95
4. 4
   U.S. National Institutes of Healthnih.gov↓2

   U.S. federal medical research agency operating PubMed, NCBI, MedlinePlus, and trial registries.

   Modern Reference A · 94·Index A+ · 95·Government
   A·94
5. 5
   Federal Reserve Systemfederalreserve.gov↓1

   U.S. central bank; primary source for monetary policy + economic data + financial-system statistics.

   Modern Reference A · 94·Index A+ · 95·Government
   A·94
6. 6
   U.S. Census Bureaucensus.gov↑1

   Federal statistical agency for U.S. demographic + economic data; primary-source decennial census + ACS surveys.

   Modern Reference A · 94·Index A · 94·Government
   A·94
7. 7
   NASAnasa.gov↑6

   U.S. space agency; primary source for space exploration + Earth science + aeronautics research.

   Modern Reference A · 94·Index A · 93·Government
   A·94
8. 8
   U.S. Bureau of Labor Statisticsbls.gov

   Federal statistical agency for U.S. labor + price data; CPI, employment, unemployment, productivity.

   Modern Reference A · 93·Index A · 94·Government
   A·93
9. 9
   U.S. Centers for Disease Control and Preventioncdc.gov↑1

   Federal agency for U.S. public-health surveillance + disease prevention; primary-source MMWR + WONDER data.

   Modern Reference A · 93·Index A · 94·Government
   A·93
10. 10
    Wikipedia (English)en.wikipedia.org↓5

    Crowd-edited encyclopedia with ~7M articles and per-article inline citation discipline.

    Modern Reference A · 92·Index A · 94·Reference
    A·92
11. 11
    PubMedpubmed.ncbi.nlm.nih.gov↓5

    U.S. National Library of Medicine literature index covering ~36M biomedical citations.

    Modern Reference A · 92·Index A · 94·Academic
    A·92
12. 12
    U.S. Food and Drug Administrationfda.gov↓3

    Federal agency for food + drug + medical-device safety; primary-source approvals + safety alerts.

    Modern Reference A · 92·Index A · 94·Government
    A·92
13. 13
    U.S. National Oceanic and Atmospheric Administrationnoaa.gov↓2

    Federal scientific agency for weather + ocean + climate data; primary-source forecasts + climate research.

    Modern Reference A · 92·Index A · 93·Government
    A·92
14. 14
    European Central Bankecb.europa.eu↓2

    EU central bank; primary source for euro-area monetary policy + financial-system data.

    Modern Reference A · 92·Index A · 93·Government
    A·92
15. 15
    FRED (Federal Reserve Economic Data)fred.stlouisfed.org↑10

    Federal Reserve Bank of St. Louis economic data infrastructure; ~800k+ data series.

    Modern Reference A · 92·Index A · 91·Government
    A·92
16. 16
    U.S. Energy Information Administrationeia.gov↑1

    Federal energy statistical agency; primary source for U.S. + international energy data + projections.

    Modern Reference A · 91·Index A · 92·Government
    A·91
17. 17
    CERNhome.cern↑1

    European Organization for Nuclear Research; primary source for particle physics + experimental high-energy physics.

    Modern Reference A · 91·Index A · 92·Academic
    A·91
18. 18
    European Commissionec.europa.eu↓3

    EU executive branch publishing primary-source policy + statistics + legislation.

    Modern Reference A · 90·Index A · 92·Government
    A·90
19. 19
    Bank of Englandbankofengland.co.uk↓3

    UK central bank; primary source for sterling monetary policy + financial-stability data since 1694.

    Modern Reference A · 90·Index A · 92·Government
    A·90
20. 20
    U.S. Geological Surveyusgs.gov↑3

    Federal scientific agency for earth sciences; primary source for geology + hydrology + earthquake data.

    Modern Reference A · 90·Index A · 91·Government
    A·90
21. 21
    OECDoecd.org↑3

    Organisation for Economic Co-operation and Development; international economic data + policy research.

    Modern Reference A · 90·Index A · 91·Government
    A·90
22. 22
    European Medicines Agencyema.europa.eu↓2

    EU agency for evaluation + supervision of medicinal products; primary-source EU drug approvals.

    Modern Reference A · 89·Index A · 91·Government
    A·89
23. 23
    U.S. Department of Agricultureusda.gov↓1

    Federal agriculture agency; primary source for U.S. food, farm, and rural-development data + research.

    Modern Reference A · 89·Index A · 91·Government
    A·89
24. 24
    PNASpnas.org↓5

    Proceedings of the National Academy of Sciences — multidisciplinary peer-reviewed journal since 1914.

    Modern Reference A · 88·Index A · 92·Academic
    A·88
25. 25
    U.S. Patent and Trademark Officeuspto.gov↓4

    Federal agency granting U.S. patents + trademarks; primary-source patent + trademark database.

    Modern Reference A · 88·Index A · 91·Government
    A·88