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http://bit.ly/I8emXd — A comprehensive list of open courses
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http://bit.ly/I8eqpP — Introduction to Computer Science and Programming, MIT
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http://academicearth.org/subjects/computerscience — AcadameicEarth (some intro courses available),
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https://www.coursera.org/category/cs — Coursera CS (more advanced courses)
Videos, Screencasts