SourceScore
TOP 25 SOURCES ON THE SOURCESCORE INDEX · BY VELOCITY

Best sources overall for AI citation by Citation Velocity

Same 25 sources, re-sorted by Citation Velocity only — different signal than the composite Index. The leader changes: U.S. National Institutes of Health takes the top position at A+ · 96.

Leader by Velocity

U.S. National Institutes of Health leads best sources overall for ai citation on Citation Velocity at A+ · 96

Velocity mean
92
Average Velocity across these 25 sources
Composite mean
93
Average SourceScore Index across the same 25 sources
Δ vs composite
-1
These sources score lower on Velocity than overall
Same list, different signal
  1. 1

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

    Velocity A+ · 96·Index A+ · 95·Government
    A+·96
  2. 2

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

    Velocity A+ · 95·Index A+ · 96·Government
    A+·95
  3. 3

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

    Velocity A+ · 95·Index A+ · 95·Academic
    A+·95
  4. 4
    Federal Reserve Systemfederalreserve.gov

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

    Velocity A+ · 95·Index A+ · 95·Government
    A+·95
  5. 5
    Wikipedia (English)en.wikipedia.org

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

    Velocity A+ · 95·Index A · 94·Reference
    A+·95
  6. 6
    PubMedpubmed.ncbi.nlm.nih.gov

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

    Velocity A · 94·Index A · 94·Academic
    A·94
  7. 7

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

    Velocity A · 94·Index A · 94·Government
    A·94
  8. 8

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

    Velocity A · 94·Index A · 94·Government
    A·94
  9. 9

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

    Velocity A · 94·Index A · 94·Government
    A·94
  10. 10
    U.S. Census Bureaucensus.gov3

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

    Velocity A · 93·Index A · 94·Government
    A·93
  11. 11
    European Central Bankecb.europa.eu1

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

    Velocity A · 92·Index A · 93·Government
    A·92
  12. 12
    NASAnasa.gov1

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

    Velocity A · 92·Index A · 93·Government
    A·92
  13. 13
    MDN Web Docsdeveloper.mozilla.org1

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

    Velocity A · 92·Index A · 93·Reference
    A·92
  14. 14
    European Commissionec.europa.eu1

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

    Velocity A · 92·Index A · 92·Government
    A·92
  15. 15

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

    Velocity A · 91·Index A · 93·Government
    A·91
  16. 16
    Bank of Englandbankofengland.co.uk

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

    Velocity A · 90·Index A · 92·Government
    A·90
  17. 17

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

    Velocity A · 90·Index A · 92·Government
    A·90
  18. 18
    PNASpnas.org1

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

    Velocity A · 90·Index A · 92·Academic
    A·90
  19. 19
    European Medicines Agencyema.europa.eu1

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

    Velocity A · 90·Index A · 91·Government
    A·90
  20. 20
    CERNhome.cern2

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

    Velocity A · 89·Index A · 92·Academic
    A·89
  21. 21

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

    Velocity A · 89·Index A · 91·Government
    A·89
  22. 22
    OECDoecd.org2

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

    Velocity A · 89·Index A · 91·Government
    A·89
  23. 23

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

    Velocity A · 88·Index A · 91·Government
    A·88
  24. 24

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

    Velocity A · 86·Index A · 91·Government
    A·86
  25. 25

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

    Velocity A · 86·Index A · 91·Government
    A·86

Why this ranking is different

The composite SourceScore Index averages all three sub-scores — Citation Discipline, Modern Reference, and Citation Velocity. This page surfaces the SAME source pool but ranks ONLY by Citation Velocity. The biggest re-shuffle: OECD jumps 2 positions vs the composite Index ranking.

Use this view when citation velocity is the signal that matters for your citation decision. The composite Index is the safer default; this dim-faceted view is the precision lens.