While the iPad remains the segment leader, increased competition in the tablet space might put pressure on Apple.

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Especially the green marketer in me: I'm a chief marketing officer at Marcal, the segment leader in bath tissue, paper towels and other paper goods made from 100% recycled paper.

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A. But after a slow start last June, Dodge dealers are selling only about 6, 000 Darts per month, well below the 33, 000 per month sold by the segment leader, Honda Civic.

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Dr Pepper Snapple is the industry leader in the flavors segment with a market share of more than 40%.

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The 3-liter box of Black Box, the equivalent of four bottles of wine, is the leader in the fastest growing segment of the wine market.

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Cirne plans to use the money over the next 18 months to establish New Relic as the undisputed leader in the SaaS IT performance monitoring segment.

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So far that vision has worked and Lions Gate has become the leader of the rich young-adult and teenager segment, building steady revenue streams coming from sources like home video and merchandise.

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Between them, the company's engineers and designers have come up with the Qoros 3, their launch product at the Geneva show, which will go on sale later this year in the market segment where the Volkswagen Golf is the leader.

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While iShares is still the leader in overall ETF assets, new owners BlackRock apparently want to dominate each individual segment as well.

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