google关于发现功能的解释只有英文的,我把它简单翻译一下:Your recommendations list is automatically generated. It takes into account the feeds you're already subscribed to, as well as information from your Web History, including your location. Aggregated across many users, this information can indicate which feeds are popular among people with similar interests. For instance, if a lot of people subscribe to feeds about both peanut butter and jelly, and you only subscribe to feeds about peanut butter, Reader will recommend that you try some jelly. This process is completely automated and anonymous; your personal information will be protected in accordance with our privacy policy.
你的推荐列表是自动生成的。它取决于你已经订阅的供稿,以及你的网络浏览内容和你自己所在的位置。通过对众多用户使用信息的分析可以得出到底哪些供稿是哪些读者所喜欢的。比如如果有很多用户同时订阅花生油和果冻的供稿,而你仅仅订阅了关于花生油的供稿,google reader就会建议你订阅一些关于果冻的。所有这一切都是自动进行并且是匿名的,你的个人信息保证不会泄漏出去。