Ovid
Wolters Kluwer's search platform — one rigorous interface over many biomedical databases.
Tier 2 CorporateSubscription
Research Database Directory
Every research database, reviewed.
PhilPapers
The comprehensive, community-curated index and archive of philosophy.
Tier 2 Open AccessFree
ACM Digital Library
The definitive full-text archive for computer science — the ACM's journals, conferences, and the complete computing literature it curates.
Tier 2 AcademicSubscription
NASA ADS (Astrophysics Data System)
The free, comprehensive index for astronomy and physics — the field's shared memory.
Tier 2 Open AccessFree
Redalyc
The open-access index of Ibero-American scholarship — diamond open access at scale.
Tier 2 Open AccessFree
CORE
The world's largest aggregator of open-access research — full text at scale.
Tier 2 Open AccessFree
ERIC
The free, authoritative index for education research and practice.
Tier 2 Open AccessFree
PsycINFO
The American Psychological Association's index — the standard for psychology and behavioral science.
Tier 2 AcademicSubscription
CINAHL
The core index for nursing and allied health literature.
Tier 3 AcademicSubscription
Cochrane Library
The home of systematic reviews — the gold standard for evidence in healthcare.
Tier 2 AcademicSubscription