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For the Record

Pricey textbooks: An article in Monday’s Section A about free online course materials challenging expensive college textbooks quoted Frank Lyman, executive vice president of CourseSmart, a commercial e-book company, as saying: “For all its popularity in the press and on blogs, [online textbooks are] all very marginal now.” Lyman says he was referring to open-source textbooks, not to all online textbooks.


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