Add Unpaywall database to the Summon index
Unpaywall is a service which harvests Open Access content directly from over 50,000 repositories. It's rapidly becoming the leading source of information about legal OA content across the web.
Unpaywall offer a 'database snapshot', a complete dump of everything we know about every Open Access DOI that exists.
I think it would be a great idea for Summon to incorporate this data in its index. It would allow a much greater level of direct linking to Open Access content for all Summon users.
(It's already possible to integrate Unpaywall's API with 360link for individual, article-by-article requests.)

Links directly to PDFs from Unpaywall are included in the November 2019 quarterly release. In 2020 we will expand on this functionality to include facet support and reporting.
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Ken Varnum commented
Will the UnPaywall-provided links be available via the Summon API?
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Ian Jacklin commented
I agree this would be a great addition to Summon, I have colleagues asking me about this
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Anita Laamanen commented
Useful, indeed. I hope ExLibris could put effort on this.
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Anonymous commented
This would be an excellent addition to Summon
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Mark Swaisland commented
I think this would be very useful
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Andy Herzog commented
Agreed
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Kathryn Silberger commented
I think this would be a significant addition to Summon. I hope Ex Libris pursues this.