Another side issue is the legality of “free” content discovered by such sources. It’s well known that ResearchGate perhaps the biggest single source of free scholarly articles (outside scihub), contains lots of content that is illegally posted — typically final published versions. Currently OA button avoids drawing from such sources. does the same but unpaywall extension by default actually uses both Oadoi as well as Google Scholar to surface content leading to discovery of possibly illegal content.

A Librarian from Singapore Management University. Into social media, bibliometrics, library technology and above all libraries.

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