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The "soft" paywall is best embodied by the metered model. The metered paywall allows users to view a specific number of articles before requiring paid subscription. [25] In contrast to sites allowing access to select content outside the paywall, the metered paywall allows access to any article as long as the user has not surpassed the set limit.
This is a list of online newspaper archives and some magazines and journals, including both free and pay wall blocked digital archives. Most are scanned from microfilm into pdf, gif or similar graphic formats and many of the graphic archives have been indexed into searchable text databases utilizing optical character recognition (OCR) technology.
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The Open Access Button is a browser bookmarklet which registers when people hit a paywall to an academic article and cannot access it. [1] It is supported by Medsin UK and the Right to Research Coalition. [1] A prototype was built at a BMJ Hack Weekend. [2] [3] All code is openly available online at GitHub. [4]
Search for the article title on Google Scholar. If the initial result is behind a paywall, try clicking on the "All X versions" link - this will tell you if other databases include this article, and may help you find an open version. From here, you may be able to find additional sources on similar topics by clicking either the "Related Articles ...
On December 1, 2009, Google announced changes to their "first click free" program, [13] [clarification needed] which has been running since 2008 and allows users to find and read articles behind a paywall. The reader's first click to the content is free, and the number after that would be set by the content provider. [14]
The article says that "The species is named in honour of Alexandra Elbakyan (Kazakhstan/Russia), creator of the web-site Sci-Hub, in recognition of her contribution to making scientific knowledge available for all researchers." [49] Brachyplatystoma elbakyani , an extinct species of catfish discovered by Argentine paleontologists in 2020. [52] [53]