He says that all wireless companies do some amount of location tracking as part of their networks.

他说，作为其网络的一部分，所有无线方面的公司都会进行一些位置跟踪。

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So it needs to rely on the national ad-placing networks, whose business model is built on tracking.

因此它需要依赖全国的广告植入网络，而这些网络的商业模式就是建立在追踪上的。

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The Journal identified more than 100 middlemen - tracking companies, data brokers and advertising networks - competing to meet the growing demand for data on individual behavior and interests.

《华尔街日报》指出在这之间存有百余个中间商，其中包括跟踪公司、数据代理和广告网络，他们竞相提供大量的关于个人行为与兴趣的数据，以满足日益增长的需求。

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Federal law enforcement is apparently having trouble meeting its objectives by tracking online social networks.

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When you factor in the powerful tracking component this offers networks and studios, it seems the answer is yes.

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Last month, the USC Annenberg Innovation Lab began tracking the online ad networks that place the most advertising on website that facilitate peer-to-peer sharing of pirated digital content.

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