Science Citation Index Expanded (84,652)
Academic Search Complete (84,513)
Complementary Index (82,063)
OAIster (67,462)
Supplemental Index (52,150)
Scopus® (48,052)
Gale Academic OneFile (47,725)
Gale General OneFile (41,002)
USPTO Patent Grants (39,558)
MEDLINE (32,441)
ScienceDirect (31,472)
Europeana (31,144)
Journals@OVID (21,630)
JSTOR Journals (18,552)
Directory of Open Access Journals (16,935)
Springer Nature Journals (16,205)
Social Sciences Citation Index (13,095)
Business Source Complete (12,858)
MathSciNet via EBSCOhost (12,471)
ERIC (11,883)
Education Source (9,706)
MLA International Bibliography (9,390)
ProjectMUSE (7,942)
Regional Business News (7,264)
USPTO Patent Applications (4,939)
eScholarship (4,787)
SwePub (4,539)
arXiv (4,269)
RePEc (3,488)
Naxos Music Library (3,357)
BrillOnline Reference Works (3,308)
IEEE Xplore Digital Library (3,032)
Research Starters (2,881)
Library, Information Science & Technology Abstracts (2,624)
BioOne Complete (2,346)
De Gruyter Online (2,001)
HeinOnline (1,954)
RISS - DDOD (Digital Dissertations On Demand) (1,507)
Emerald Insight (1,412)
NASA Technical Reports (1,381)
Arts & Humanities Citation Index (1,306)
Communication & Mass Media Complete (1,155)
Wiley Online Reference Works (1,052)
Persée (980)
GOBI E-books (976)
APA PsycArticles (948)
Oxford Scholarship Online (642)
Alexander Street (608)
Digital Access to Scholarship at Harvard (DASH) (592)
SciELO (528)
ACM Full-Text Collection (513)
GeoScienceWorld (503)
Artstor on JSTOR (For institutions outside of the US) (400)
British Library EThOS (391)
Oxford Reference (319)
Westlaw UK (298)
SciTech Connect (297)
SpringerMaterials (265)
J-STAGE (248)
TDX (234)
Airiti Library eBooks & Journals - 華藝線上圖書館 (173)
University Press Scholarship Online (169)
ASTM Compass (161)
Korea Citation Index (146)
Accessible Archives (144)
Choice Reviews (139)
China Online Journals (Wanfang) (131)
SSOAR – Social Science Open Access Repository (130)
CINAHL Plus with Full Text (115)
Korean Studies Information Service System (109)
Aerospace Research Central (107)
Oxford Medicine Online (103)
Oxford Art Online (93)
Grove Music Online (92)
Wiley Digital Archives (92)
Cochrane Database of Systematic Reviews (89)
ClinicalTrials.gov (73)
KERIS Theses & Dissertations (60)
DBPIA (52)
F1000Research (42)
ASM Medical Materials Database (38)
JoVE Journal (36)
Britannica Online (34)
OAPEN Library (33)
McGraw-Hill Medical (32)
AccessScience (29)
스콜라(Scholar) (26)
E-LIS (Eprints in Library & Information Science) (25)
Newswires (24)
AccessEngineering (19)
Canadiana Online (18)
eArticle (17)
Academic Conferences in China (Wanfang) (15)
Oxford Clinical Psychology (14)
SveMed+ (11)
ICPSR Data Archive (10)
CogPrints (7)
MLA Directory of Periodicals (7)
OECD iLibrary (4)
BMJ Best Practice US (4)
BrillOnline Primary Source (2)
ERICdata Higher Education Knowledge (2)
Economist Historical Archive (2)
JoVE Core (1)
JoVE Lab Manual (1)
BMJ Clinical Evidence (1)
JoVE Science Education Database (1)
KRpia (1)
agriRxiv (1)