摘要
通过追踪网络浏览、电子邮件、聊天及其他活动，谷歌已成为数字广告的一股主导势力。该公司挖掘丰富的个人资料，把广告投给最有可能产生兴趣的人。不过，谷歌在一年一度的开发者大会上发表的产品与应用程序如果能够风行起来，那么谷歌科技所放在网上的大多数广告就不再有意义。
By tracking web browsing, emails, chats and more, Google has become a dominant force in digital ads. It mines that wealth of personal data to present ads to the people most likely to care about them. But most of the ads Google technology places across the Internet won＇t make sense anymore if the types of products and apps the company announced at its annual I/O developer＇s conference catch on.
