A recent one-page ad in Parade cost a deeply discounted $200,000 and brought in 2,000 paying customers, a killer response.

最近在《炫耀》杂志刊登的一页广告打完折之后只花费了20万美元，却带来2000个付费客户，一招必杀技。

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And what they are building, he vows, is a killer ad machine, more powerful than print or television and able to charge far higher prices.

FORBES: The Killer Ad Machine

It went on to make billions by using features like AdWords and turning killer apps like Google Maps into subtle ad platforms.

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