Do not put words in my mouth." Information is often spread through word of mouth.

VOA: special.2010.06.20

Originally, we thought it's information needs only; we just need to find a web page that contains the query word, but it's actually not.

起初，我们以为人们只是需要信息而已;,只需找到一个带有关键字的网页即可，但实际上并不是。

斯坦福公开课 - 百度CEO李彦宏演讲：全球最大搜索引擎的发展课程节选

One in five said that word of mouth - getting advice from friends - was an important source of information.

VOA: standard.2009.03.30