我们可以从五百万图书中学到什么？

What can be learned from 5 million books
http://v.youku.com/v_show/id_XMzA3OTA5MjUy.html
This talk by Jean-Baptiste Michel and Erez Lieberman Aiden is phenomenal. The associated article is also well worth checking out:
Michel, J.-B., et al. (2011). Quantitative Analysis of Culture Using Millions of Digitized Books. Science, 331, 176–182.
                
                
https://books.google.com/ngrams/
试一下
数据下载：
http://www.culturomics.org/home