Membership:

1. iThenticate

2. CrossRef (included in 2016)

Scientometric databases, repositories and libraries:

1. Index Copernicus Journals Master List

2. Google Scholar

3. WorldCat

4. Directory of Open Access Journals (DOAJ)

5. International Institute of Organized Research (I2OR)

6. Ulrich's Periodicals Directory

7. Neliti

8. BASE

9. ResearchBib

10. Directory of Open Access scholarly Resources (ROAD)

11. Semantic Scholar

12. CORE (COnnecting REpositories)

13. JournalTOCs

14. MIAR

15. WorldWideScience.org