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Pay-to-play (P2P) is a model in which a subscription payment is required on an ongoing basis, in order to use a service. When comparing the three revenue models, the free-to-play and buy-to-play model is slowly rising in popularity as the pay-to-play model is decreasing in relative popularity.
Growth of the eight largest Wikibooks sites (by language), July 2003–January 2010. Wikibooks (previously called Wikimedia Free Textbook Project and Wikimedia-Textbooks) is a wiki-based Wikimedia project hosted by the Wikimedia Foundation for the creation of free content digital textbooks and annotated texts that anyone can edit.
Over 1,200 (and growing) books published by the Metropolitan Museum of Art, New York, up to c. 2009, fully available to download as PDFs (though content is still copyrighted) from the Thomas J. Watson Library at the MMA.
During the 2009–10 English football season, Notts County F.C. competed in Football League Two, the fourth tier of the English football league system. Shortly before the season began, Notts County was subject to a high-profile takeover by Munto Finance, which was controlled by a convicted fraudster. The club had been acquired as part of an ...
An open textbook is a textbook licensed under an open license, and made available online to be freely used by students, teachers and members of the public.Many open textbooks are distributed in either print, e-book, or audio formats that may be downloaded or purchased at little or no cost.
Wikipedia articles can be purchased in book form from third-party publishers. Wikipedia content may also be integrated into larger commercially available books. Publishers that do so are required to adhere to the relevant copyright licenses (such as attributing article authors) but are not restricted in any way from charging for the work.
Though the search engines may be accessed for free, indexed images themselves may be under restricted license. Google Books [3] - Searchable archive of magazines and books (some full-text, including photograph captions and references to photographs from related articles and content).
"free availability on the public internet, permitting any users to read, download, copy, distribute, print, search, or link to the full texts of these articles, crawl them for indexing, pass them as data to software, or use them for any other lawful purpose, without financial, legal, or technical barriers other than those inseparable from ...