A woman cultivates seaweed off the coast of Madagascar to counter overfishing. She's working with Blue Ventures, a business that supports its conservation projects by giving ecotours. Courtesy of Skoll Foundation hide caption

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Pet Rock creator Gary Ross Dahl became a millionaire from his rock sales in the 1970s. Each rock came in a special box (bottom left) with a detailed instruction manual. San Francisco Chronicle/AP hide caption

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Models walk the catwalk in March 2009 during one of Alexander McQueen's last shows, Ready-to-Wear Autumn/Winter 2009, in Paris. McQueen was one of several fashion designers elevated to prominence by Bernard Arnault, the French tycoon who transformed the business of high fashion. Pascal Le Segretain/Getty Images hide caption

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Target shoppers Kelly Foley (from left), Debbie Winslow and Ann Rich use a smartphone to look at a competitor's prices while shopping shortly after midnight on Black Friday, in South Portland, Maine. Robert F. Bukaty/AP hide caption

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Lynn Good has had many mentors throughout her career — but few of them were women. "So I'm generationally on the early part of the ascent of women into leadership roles," the Duke Energy president and CEO says. Pat Sullivan/AP hide caption

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Jack Ma speaks in Hangzhou, China, on May 10, 2013. Ma shot to fame as the founder of Alibaba, the pioneering Chinese e-commerce site that's poised to be one of the biggest tech IPOs ever when it goes public in New York. Peter Parks/AFP/Getty Images hide caption

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Employees lift weights near the end of a workout class at the Sherwin-Williams corporate health and wellness center in downtown Cleveland. Sarah Jane Tribble / WCPN hide caption

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AmeriMark employees sort through return orders on the catalog company's processing floor. Sarah Jane Tribble / WCPN hide caption

itoggle caption Sarah Jane Tribble / WCPN

The Weather Channel's Jim Cantore reporting from Manhattan's Battery Park during Hurricane Irene in August 2011. Jonathan Saruk/The Weather Channel/Getty Images hide caption

itoggle caption Jonathan Saruk/The Weather Channel/Getty Images