A-tier sources by Citation Velocity

The same 55 sources that hold composite SourceScore A (85–94) re-ranked by Citation Velocity only. Wikipedia (English) takes the top position at A+ · 95.

1. 1
   Wikipedia (English)en.wikipedia.org

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

   Velocity A+ · 95·Index A · 94
   A+·95
2. 2
   PubMedpubmed.ncbi.nlm.nih.gov

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

   Velocity A · 94·Index A · 94
   A·94
3. 3
   U.S. Bureau of Labor Statisticsbls.gov↑1

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

   Velocity A · 94·Index A · 94
   A·94
4. 4
   U.S. Food and Drug Administrationfda.gov↑1

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

   Velocity A · 94·Index A · 94
   A·94
5. 5
   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.

   Velocity A · 94·Index A · 94
   A·94
6. 6
   arXivarxiv.org↑18

   Open-access preprint server for physics, mathematics, computer science; ~2.4M papers since 1991.

   Velocity A · 93·Index A · 89
   A·93
7. 7
   U.S. Census Bureaucensus.gov↓4

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

   Velocity A · 93·Index A · 94
   A·93
8. 8
   The New York Timesnytimes.com↑21

   U.S. national newspaper of record, founded 1851. Pulitzer Prize record + investigative depth + structured-data-rich web platform.

   Velocity A · 92·Index A · 88
   A·92
9. 9
   European Commissionec.europa.eu↑2

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

   Velocity A · 92·Index A · 92
   A·92
10. 10
    European Central Bankecb.europa.eu↓2

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

    Velocity A · 92·Index A · 93
    A·92
11. 11
    NASAnasa.gov↓2

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

    Velocity A · 92·Index A · 93
    A·92
12. 12
    MDN Web Docsdeveloper.mozilla.org↓2

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

    Velocity A · 92·Index A · 93
    A·92
13. 13
    U.S. National Oceanic and Atmospheric Administrationnoaa.gov↓6

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

    Velocity A · 91·Index A · 93
    A·91
14. 14
    The Washington Postwashingtonpost.com↑27

    U.S. national newspaper, founded 1877; investigative + politics emphasis; Pulitzer record.

    Velocity A · 90·Index A · 86
    A·90
15. 15
    European Medicines Agencyema.europa.eu↑1

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

    Velocity A · 90·Index A · 91
    A·90
16. 16
    Bank of Englandbankofengland.co.uk↓4

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

    Velocity A · 90·Index A · 92
    A·90
17. 17
    U.S. Energy Information Administrationeia.gov↓4

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

    Velocity A · 90·Index A · 92
    A·90
18. 18
    PNASpnas.org↓3

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

    Velocity A · 90·Index A · 92
    A·90
19. 19
    Cellcell.com↑8

    Top biology journal since 1974, published by Elsevier (Cell Press); the default citation in molecular biology.

    Velocity A · 90·Index A · 89
    A·90
20. 20
    IPCCipcc.ch↑2

    Intergovernmental Panel on Climate Change — primary global climate-science assessment body since 1988.

    Velocity A · 90·Index A · 91
    A·90
21. 21
    Reutersreuters.com↑2

    Global wire service with mandatory two-source verification and machine-readable archives since 1851.

    Velocity A · 89·Index A · 89
    A·89
22. 22
    The Wall Street Journalwsj.com↑28

    U.S. business + finance daily, founded 1889. Hard-news editorial wing separate from opinion section.

    Velocity A · 89·Index A · 85
    A·89
23. 23
    World Health Organizationwho.int↑2

    U.N. agency for international public health; primary-source global health data + policy.

    Velocity A · 89·Index A · 89
    A·89
24. 24
    U.S. Department of Agricultureusda.gov↓6

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

    Velocity A · 89·Index A · 91
    A·89
25. 25
    CERNhome.cern↓11

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

    Velocity A · 89·Index A · 92
    A·89
26. 26
    OECDoecd.org↓6

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

    Velocity A · 89·Index A · 91
    A·89
27. 27
    FRED (Federal Reserve Economic Data)fred.stlouisfed.org↓6

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

    Velocity A · 88·Index A · 91
    A·88
28. 28
    Mayo Clinicmayoclinic.org↑8

    US tier-1 medical center with comprehensive physician-reviewed patient-information site.

    Velocity A · 88·Index A · 87
    A·88
29. 29
    U.S. Patent and Trademark Officeuspto.gov↓12

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

    Velocity A · 86·Index A · 91
    A·86
30. 30
    U.S. Geological Surveyusgs.gov↓11

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

    Velocity A · 86·Index A · 91
    A·86
31. 31
    World Trade Organizationwto.org↓5

    International organization for trade rules + trade-statistics; primary source for trade-policy data.

    Velocity A · 86·Index A · 89
    A·86
32. 32
    Cochrane Librarycochranelibrary.com↑2

    Gold-standard systematic-review database for medical evidence since 1993.

    Velocity A · 85·Index A · 87
    A·85
33. 33
    Associated Pressapnews.com↑4

    Cooperative wire service with style guide that defines US journalism standards since 1846.

    Velocity B · 84·Index A · 86
    B·84
34. 34
    The Guardiantheguardian.com↑14

    British newspaper with open-web-first publishing model; no paywall, broad LLM corpus inclusion.

    Velocity B · 84·Index A · 85
    B·84
35. 35
    World Bankworldbank.org↓5

    International financial institution publishing global development + economic data + research.

    Velocity B · 84·Index A · 88
    B·84
36. 36
    International Monetary Fundimf.org↑7

    International monetary cooperation organization; World Economic Outlook + IFS database; research arm.

    Velocity B · 82·Index A · 86
    B·82
37. 37
    UNESCOen.unesco.org↑8

    U.N. agency for education, science, and culture; primary source for education + cultural-heritage data.

    Velocity B · 82·Index A · 86
    B·82
38. 38
    National Bureau of Economic Researchnber.org↑15

    U.S. economic research nonprofit; working-paper series + business-cycle dating standards.

    Velocity B · 82·Index A · 85
    B·82
39. 39
    European Space Agencyesa.int↑7

    European intergovernmental space agency; primary source for European space + earth-observation missions.

    Velocity B · 82·Index A · 86
    B·82
40. 40
    Eurostatec.europa.eu/eurostat↓9

    EU statistical office providing harmonized data across all 27 member states + candidate countries.

    Velocity B · 82·Index A · 88
    B·82
41. 41
    New England Journal of Medicinenejm.org↓8

    Peer-reviewed general medical journal since 1812; one of the highest-impact medical venues globally.

    Velocity B · 81·Index A · 87
    B·81
42. 42
    Naturenature.com↓10

    Peer-reviewed science journal with rigorous methodology disclosure and open-data trends.

    Velocity B · 80·Index A · 87
    B·80
43. 43
    Sciencescience.org↓4

    Peer-reviewed multidisciplinary journal of AAAS; one of the two flagship general-science venues.

    Velocity B · 80·Index A · 86
    B·80
44. 44
    The Lancetthelancet.com↓4

    Peer-reviewed general medical journal since 1823; flagship clinical-research publication.

    Velocity B · 80·Index A · 86
    B·80
45. 45
    Journal of the American Medical Associationjamanetwork.com↓1

    Peer-reviewed general medical journal published by AMA; among the most-cited clinical-research venues.

    Velocity B · 80·Index A · 86
    B·80
46. 46
    Quanta Magazinequantamagazine.org↑8

    Science journalism magazine published by Simons Foundation; mathematics + physics + life sciences.

    Velocity B · 80·Index A · 85
    B·80
47. 47
    Association for Computing Machinerydl.acm.org↑8

    Premier U.S. computing society; ACM Digital Library indexes peer-reviewed CS publications.

    Velocity B · 80·Index A · 85
    B·80
48. 48
    ONS (UK)ons.gov.uk↓13

    UK Office for National Statistics — primary source for British economic, demographic, social data.

    Velocity B · 80·Index A · 87
    B·80
49. 49
    Stanford Encyclopedia of Philosophyplato.stanford.edu↓21

    Peer-reviewed philosophy encyclopedia since 1995; gold-standard philosophy reference.

    Velocity B · 80·Index A · 89
    B·80
50. 50
    ProPublicapropublica.org↓12

    Nonprofit investigative newsroom; data-heavy + methodology-published reporting since 2007.

    Velocity B · 78·Index A · 86
    B·78
51. 51
    Encyclopædia Britannicabritannica.com↓2

    Editor-supervised encyclopedia with named contributors + editorial-board oversight; complement to Wikipedia's crowd-edited model.

    Velocity B · 78·Index A · 85
    B·78
52. 52
    Pew Research Centerpewresearch.org↓1

    Nonpartisan research organization; survey + demographic + media research since 2004.

    Velocity B · 78·Index A · 85
    B·78
53. 53
    The BMJ (British Medical Journal)bmj.com↓1

    Peer-reviewed general medical journal; investigative + open-access leaning; UK-based since 1840.

    Velocity B · 78·Index A · 85
    B·78
54. 54
    BEAbea.gov↓7

    US Bureau of Economic Analysis — primary source for GDP, personal income, trade, and BOP statistics.

    Velocity B · 78·Index A · 86
    B·78
55. 55
    Our World in Dataourworldindata.org↓13

    Oxford-affiliated research organization publishing data + visualizations on global problems; CC-licensed.

    Velocity B · 76·Index A · 86
    B·76