The publisher and subscribers are related by a topic, which represents the category of data in which the subscribers are interested.

发布者和订户通过主题相关，而主题表示订户该兴趣的数据类别。

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A broker sits in between the publisher and subscribers and sends a copy of each message under a certain topic to the appropriate subscribers.

发布程序和订阅程序之间有一个代理，它将某个主题下的每条消息的副本发送给适当的订阅程序。

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In essence, the publisher mediation re-publishes the topic to which it subscribes, with the potential for logging and transformation between the the publisher and subscribers.

其实，发布者会将主题重新发布到订阅该主题的订阅者，并有可能在发布者和订阅者之间进行日志记录和转换。

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Jim Moroney, the paper's publisher, said the primary goal is to get print subscribers more engaged with the digital editions and observe how non-subscribers respond to paying for access.

WSJ: New York Times Prepares Plan to Charge for Online Reading

Salon Media (otc: SALN - news - people ), publisher of Salon.com and owner of the Well, a pioneering Internet service also started offering blog services for its subscribers last year.

FORBES: Google Goes Blog-Crazy