SourceScore
REFERENCE + ACADEMIC COMBINED — CITATION BACKBONE · BY VELOCITY

Best encyclopedic + scholarly knowledge sources by Citation Velocity

Same 15 sources, re-sorted by Citation Velocity only — different signal than the composite Index. The leader changes: DOI (CrossRef Resolver) takes the top position at A+ · 95.

Leader by Velocity

DOI (CrossRef Resolver) leads best encyclopedic + scholarly knowledge sources on Citation Velocity at A+ · 95

Velocity mean
87
Average Velocity across these 15 sources
Composite mean
89
Average SourceScore Index across the same 15 sources
Δ vs composite
-2
These sources score lower on Velocity than overall
Same list, different signal
Composite Index (default)By DisciplineBy Modern Reference
  1. 1
    DOI (CrossRef Resolver)doi.org

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

    Velocity A+ · 95·Index A+ · 95·Academic
    A+·95
  2. 2
    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
  3. 3
    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
  4. 4
    arXivarxiv.org↑3

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

    Velocity A · 93·Index A · 89·Academic
    A·93
  5. 5
    MDN Web Docsdeveloper.mozilla.org↓1

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

    Velocity A · 92·Index A · 93·Reference
    A·92
  6. 6
    PNASpnas.org

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

    Velocity A · 90·Index A · 92·Academic
    A·90
  7. 7
    Cellcell.com↑1

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

    Velocity A · 90·Index A · 89·Academic
    A·90
  8. 8
    CERNhome.cern↓3

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

    Velocity A · 89·Index A · 92·Academic
    A·89
  9. 9
    Cochrane Librarycochranelibrary.com↑2

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

    Velocity A · 85·Index A · 87·Academic
    A·85
  10. 10
    National Bureau of Economic Researchnber.org↑4

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

    Velocity B · 82·Index A · 85·Academic
    B·82
  11. 11
    Stanford Encyclopedia of Philosophyplato.stanford.edu↓2

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

    Velocity B · 80·Index A · 89·Reference
    B·80
  12. 12
    Naturenature.com↓2

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

    Velocity B · 80·Index A · 87·Academic
    B·80
  13. 13
    Sciencescience.org↓1

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

    Velocity B · 80·Index A · 86·Academic
    B·80
  14. 14
    Association for Computing Machinerydl.acm.org↑1

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

    Velocity B · 80·Index A · 85·Academic
    B·80
  15. 15
    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·Reference
    B·78

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: National Bureau of Economic Research jumps 4 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.