“Could you patent the sun?” Jonas Salk

Don’t Buy That Textbook, Download It Free!!!

“If I had finished my own book, I would have finished a couple years ago,” he said. “It would have taken five years. It would have spent five years in print and sold 2,000 copies.” Instead, he said, he posted it on the Web site and there have been 2.8 million page views of his textbook, “Signals and Systems,” including a translation into Spanish.

Connexions is strongest in statistics and electrical engineering; there were 850,000 unique users a month, with more than 50 percent of the traffic originating from outside the United States.

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