Because DB2 and Oracle Web services are publishers, they use the broker to all subscribers on that topic without knowing the details of those subscribers.

由于DB 2和Oracle Web服务都是发布者，因此可以使用代理来处理主题的所有订阅者，而不用知道这些订阅者的细节。

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Some of those subscribers receive only the online version, making the Journal one of the few papers to successfully make its online readers pay for content.

而部分订阅者则只选择了网络版，这使华尔街日报成为可向在线读者成功收费的少数报纸之一。

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Thus content based routing helps the subscribers get the most of those messages that they really need.

因此，基于内容的路由能帮助订阅者从中获得真正需要的大部分消息。

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Now they push ads to those subscribers who still come to play the check-in game.

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Same-day streaming pulls in new subscribers, but it also allows those subscribers to cancel one they feel sufficiently steeped in a breakout favorite.

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For example, while Groupon lists 83.1 million subscribers as of March 31, 2011 (up from 152, 203 in June 2009), the company admits it sold just 28 million deals to those subscribers during the first three months of the year.

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