某些免费或低价的应用在设计上都会向用户推送广告：其他一些则会处心积虑盗窃用户的个人信息或跟踪其互联网浏览习惯。
Some free or low cost applications are designed to serve ads to users; others are designed to steal personal information from users or track their Internet browsing habits.
移动属于即时的信息推送，其目的在于能够立即给予回应，因此它表现出对个人隐私的侵扰。 而互联网社会性站点可以允许信息的接受者自己决定什么时候读这条消息，什么时候去回复它。
Mobile is an immediate, push with an expectation of immediate response, it is more intrusive but internet social sites allow the receiver to decide when to read and respond.
RSS技术是互联网上的最新技术之一，论文对RSS技术进行了深入研究，并在此基础上提出了新闻推送系统的设计与实现方案。
RSS is one of the most important technique. Based on a deep research into RSS technique, the paper puts forward a solution to design and realize the news push-delivery system.
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