Colleges and professors have rushed to try a new form of online teaching known as MOOCs—short for "massive open online courses." The courses raise questions about the future of teaching, the value of a degree, and the effect technology will have on how colleges operate. Struggling to make sense of it all?
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Anyone who wants to learn calculus, statistics or ancient Greek history can take free online courses in those subjects at a variety of sites from instructors with distinguished academic pedigrees. For more mundane pursuits, like learning how to paddleboard or build a planter box for the garden, there is an inexhaustible supply of free how-to videos on YouTube, eHow and other sites.
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