But the ed tech space is hot now and Desire2Learn has shown some serious traction.

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Which are the most promising ed tech start-ups?

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However, the variable invariably overlooked by the imaginative and passionate ed-tech crowd is human nature itself.

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It also happens to be the home of Lynda.com, an ed-tech startup and one of the bigger success stories in all of California this year (disclosure: I have no relationship with the company, by my sister firm does).

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