Twenty lectures by Hal Abelson and Gerald Jay Sussman available under CC license

"The complete MIT course (video) available for download. These twenty video lectures by Abelson and Sussman are a complete presentation of the course, given for Hewlett-Packard employees."

I have joined the torrent for all twenty. The textbook is also available. I don't think this stuff dates.

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The Klein Four Group - Finite Simple Group (of Order Two)

Mathematical Love Song (Acapella) I'm a sucker for academic humor.

Semco and Goal Congruence

This is a review of a book about Semco, a company which may be organized along the principles of Goal Congruence. I want to know more.

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Egghunt

Evolution.