Which Source to Use for What:
Coverage of journals published outside the U.S. – Google Scholar and Scopus do a lot more of this than Web of Science.
Non-English language publications – Google Scholar will find more of these.
Interdisciplinary field coverage – Scopus and Google Scholar cover more journals in fields that span multiple disciplines.
“High-influence” publications – Web of Science.
Peer reviewed journals – Scopus and Web of Science. GS known to cover a lot of non-reviewed content.
Non-journal coverage – Google Scholar has more unique types of materials (PDF files, Word docs, technical reports, theses and dissertations, etc.). Web of Science and Scopus both have “some” proceedings and books but they are mainly covering journal articles.
Book coverage – Google Scholar excels at this way more than the others as it covers Google Books content along with other freely-accessible online publications.
Authors with common names – Scopus and Web of Science can easily help distinguish between similar author names.
|Web of Science Core Collection
|Number of journals
(22,800 if include trade pubs)
(20,556 if include ESCI)
|Physical sciences, health sciences, life sciences, social sciences & humanities
|Science, technology, social sciences, arts and humanities
|All subject areas
|1970 to present
|1945-present; if Century of Science purchased, coverage back to1900
|Yes, if has an English abstract; 22% of journals are non-English
|Yes, if has an English abstract
|Articles published in many languages
|# Published outside North America
(20,420 if include ESCI)
|Interdisciplinary field coverage
|Yes, but requires login
|Yes - en masse
|Yes - en masse
Disclaimer: Web of Science coverage in this chart refers to the Web of Science Core Collection excluding Emerging Sources Citation Index (ESCI) unless noted otherwise.
Credits: Table originally modified from Scopus vs. Web of Science Comparison Chart (from Univ of Washington Health Sciences Library), information from the ADAT Database Comparison Tool, and the HLWIKI Canada page. All of which are no longer available.