Many college students and their families are concerned about the high costs of textbooks. Ebooks have been proposed as one potential solution, open-source textbooks have also been explored. A company called Flat World Knowledge produces and gives away open-source textbooks in a way they believe to be financially sustainable. This article reports an initial study of the financial sustainability of the Flat World Knowledge open-source textbook model.
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Hilton et al. (2010) studied this question.
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