E-Journals
AAAS-Science [titles: 1]
ACM Digital Library [titles: 158] (now publish without APCs)
American Chemical Society [titles: 87]
American Institute of Aeronautics and Astronautics (AIAA) Journals [titles: 8]
American Institute of Physics [titles: 28]
American Mathematical Society [titles: 9]
American Physical Society [titles: 15]
American Society of Civil Engineers [titles: 36]
American Society of Mechanical Engineers [titles: 35]
American Society for Microbiology [titles: 16]
Annual Reviews [titles: 51]
Bentham Science [titles: 118]
Cambridge University Press [titles: 442]
Economic & Political Weekly [titles: 1]
Elsevier Science Direct [titles: 2387]
ICE Publishing [titles: 34]
IEL online - IEEE/IET Electronic Library [titles: 210]
IndianJournals.com [titles: 258]
Institute of Physics [titles: 74]
Lippincott Williams & Wilkins (Wolters Kluwer) [titles: 305]
Medium (request article through online form) [titles: 1]
MIT Technology Review [titles: 1]
Oxford University Press [titles: 375]
Project Muse [titles: 731]
SPIE Digital Library [titles: 11]
Springer Nature [titles: 2404]
Taylor & Francis [titles: 2548]
Thieme Journals [titles: 51]
Wiley-Blackwell [titles: 1333]
Abstract & Citation Database
Tracxn (Startup database)