This is not a profitable venture at the moment, and the average annual return to shareholders over the past six years has been -7%.

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Southeast Renewable might be a profitable venture.

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This success turned the farm into a marginally profitable venture.

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Less successful but still profitable is Pittsburgh Corning, a joint venture with PPG Industries, that makes foam glass insulation and architectural glass blocks.

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Silicon Valley has a critical mass of entrepreneurs and venture capitalists and, more importantly, a culture of turning whizzy ideas into profitable businesses.

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No surprise that, for every new venture that manages to turn an invention into a profitable innovation, hundreds of others fall by the wayside.

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If VeriSign launches a venture that--wonder of wonders--is profitable, the company would surely want us to count this.

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