Example, try search proprietary software, say 'Autocad', first few results are always pirate sites, while google will show the Autodesk site and the wikipedia post.
Recently Baidu also under the spotlight for monetizing illness-related forums[1]. The issue is some patients accused the Internet giant selling their private info to _unqualified_ private hospitals. These hospitals charge a lot but usually their hardware and staff are underqualified.
[1] http://www.chinadaily.com.cn/business/2016-01/12/content_230...