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A similar phenomenon, termed the "no abstract available bias" or NAA bias, is a scholar's tendency to cite journal articles that have an abstract available online more readily than articles that do not—this affects articles' citation count similarly to open access citation advantage. [1] [2]
Google Scholar is a freely accessible web search engine that indexes the full text or metadata of scholarly literature across an array of publishing formats and disciplines. . Released in beta in November 2004, the Google Scholar index includes peer-reviewed online academic journals and books, conference papers, theses and dissertations, preprints, abstracts, technical reports, and other ...
The main academic full-text databases are open archives or link-resolution services, although others operate under different models such as mirroring or hybrid publishers. Such services typically provide access to full text and full-text search, but also metadata about items for which no full text is available.
Rather than making journal articles accessible through a subscription business model, all academic publications could be made free to read and published with some other cost-recovery model, such as publication charges, subsidies, or charging subscriptions only for the print edition, with the online edition gratis or "free to read".
The following list is meant to help you with your own research, by offering links to respectable information sources on the web, available free of charge. Inclusion on the list doesn't automatically mean the absolute truth is on these websites, so always be critical and compare information between different sources.
When copyrighted text must be quoted, see the plagiarism and non-free content guidelines. Extensive quotation of copyrighted text is prohibited. Extensive quotation of copyrighted text is prohibited. Although quoting involves copying another writer's work without permission, it is generally permitted under fair use rules in the United States.
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Wikipedia articles are required to present a neutral point of view. However, reliable sources are not required to be neutral, unbiased, or objective. Sometimes non-neutral sources are the best possible sources for supporting information about the different viewpoints held on a subject.