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Lazy ScholarGoogle Scholar buttonLean LibraryKopernioAnywhere AccessLibkey Nomad
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VendorColby VorlandGoogle Lean Library (under Sage)Kopernio (under Clarivate)Digital ScienceBrowzine
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Business ModelFreeFreeSubscription
Freemium (premium = up to 2gb space + dropbox intergration https://kopernio.com/premium -- invite a friend)
SubscriptionSubscription
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URL
http://www.lazyscholar.org/
https://chrome.google.com/webstore/detail/google-scholar-button/ldipcbpaocekfooobnbcddclnhejkcpn?hl=en
https://www.leanlibrary.com/https://kopernio.com/
https://www.anywhereaccess.com/
https://thirdiron.com/libkey-nomad/
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Open Access sources
Google Scholar (scrape), Dissem.in, EuropePMC, Pubmed, PMC
Google Scholar Unpaywall+others
Unpaywall + Google Scholar (https://kopernio.zendesk.com/hc/en-gb/articles/360017035613-Where-does-Kopernio-get-the-PDFs-from-)
?
Unpaywall+Fully OA journals in LIbkey Knowledge base
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Requires library submission of holdings?
No (primary method), secondary method as per Google Scholar button
No (if already setup by library in GS Library Programme)
YesNo Yes
No (if already setup by library in Browzine)
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How it detects your entitlements
It queries various publishers with your user credentials (ezproxy) and checks for pdf (primary method) + Scrapes GS Library link resolver link (secondary method)
Library link resolver link + holdings you give Google Scholar
Leverages Library link resolver (xml view) + holdings you give Lean Library (for auto proxying by domains)
It queries various publishers with your credentials and checks for pdf
inhouse resolver? + holdings you give digital science
Libkey infrastructure (same as browzine) + holdings you give browzine
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Provides additional Library link resolver support
Yes (only for available items in GS)
Yes (only for available items in GS)
Yes (main method)
Yes if institution is WOS customer
?
Yes natively, can also choose to add fallback URL
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Aggregator support
As per link resolver (secondary method)
As per link resolver As per link resolver
Not directly with content in Proquest or Ebsco (https://kopernio.zendesk.com/hc/en-gb/articles/360022398973-Does-Kopernio-work-on-aggregators-EBSCOhost-and-ProQuest-) but institutions that are WOS customers can request a library link resolver link to provide a alternative path
?
Yes, https://support.thirdiron.com/knowledgebase/articles/132654-what-publishers-do-you-support- + fall back Library link resolver support
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Ezproxy - "Proxifying by domain"NANA
Automatically offers to proxy if in list of domains provided by library, useful for non-journal content such as databases
NANANA
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Stores user credentials YesNoNo
Yes, optional (https://kopernio.zendesk.com/hc/en-gb/articles/360020978694-How-does-Kopernio-store-and-protect-institutional-credentials-)
?No
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Authentication methods supported
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Overlays results in Google ScholarNoNoNoYes ?On roadmap
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Overlays results in PubmedNoNoYesYes ?Yes
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Overlays results in WikipediaNoNoNoNo?Yes
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 "1 click to PDF" - PDF directNoNo?YesYesYes
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ILL/DDS supportNoNoYesNo Yes (via Readcube?)Yes
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Analytics for librariesNANAYes
Yes (Support of COUNTER R5 & distributed usage logging)
Yes (Support of COUNTER)?
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Statistics providedNANA
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Browsers supportedChromeChrome, Firefox
Chrome, Firefox, Opera, Explorer, Safari
Chrome, FirefoxChromeChrome
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Unique feature 1Recommends papers
Library Assist - setup customized messages when users visit specific domains
PDF locker
Knowledge base error monitoring
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Unique feature 2autorenames filesEbooks support?
Integrates with Endnote (full-text PDFs into EndNote with the free Kopernio browser plugin.)
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Unique feature 3
Pulls cites from Google Scholar, Microsoft Academic, Web of Science; Journal citerank, Altmetric, reviews from pubpeer etc
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Unique feature 4
Extract references, PICO information, abbreviations, and more from PDFs and non-PDFs. (http://www.lazyscholar.org/2018/03/29/lazy-scholar-2-0-getting-smarter/)
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