academics various subjects

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MIT Open Course Ware

MIT OpenCourseWare (OCW) is a web-based publication of virtually all MIT course content. OCW is open and available to the world and is a permanent…


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Open Textbook Initiative

registry of textbooks (and related materials) which are free for anyone to use, reuse and redistribute; run by the Open Knowledge Foundation (http://www.okfn.org). Cost: Free


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Khan Academy

Started famously by Salman Khan and praised by Bill Gates, this collection of thousands of videos pioneers the concept of “flipping the classroom” where people…


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Flat World Knowledge

free open-source online textbooks; pay for printed copies Cost: Free


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Academic Earth

Video lectures from such prestigious schools like Harvard, Stanford, Yale, Berkley, and Princeton are posted of their most popular lectures. Cost: Free