A second interesting observation is how important the initial user base can be for the success of a company dependent on viral marketing.

第二个有趣的观察是，对于依靠病毒营销取得成功的公司来讲，第一批的用户基础是多么的重要。

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But design, product development and marketing carried on at the company's German base.

但设计、产品研发和营销由设在德国的公司总部进行。

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It took a combination of the well-oiled Apple marketing machine, a beautiful product and a passionate user base.

iPod能够成功归功于苹果公司高效（well-oiled）的市场机器、它本身的漂亮外观和充满热情的用户基础的组合。

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Essentially all of the increase comes from an extended online marketing customer base, which grew to 272, 000, up 25.9% from Q3 2009, and 7.1% on a sequential basis.

FORBES: Magazine Article

This becomes more complex as the business expands and suddenly there are infrastructure costs that require a minimum amount of sales, which requires expanding the customer base through marketing and maximizing repeat sales.

FORBES: You don't need a better mousetrap, or three steps to start a successful business

Marketing to the overarching definition of your customer base is a given, as in marketing feminine hygiene to, ah, females.

FORBES: Emotion Is Always In Fashion