The foundation would also like to see improved access to free English language lessons so migrant workers can improve their knowledge of their rights and ask for help, and easier access to legal redress and compensation.

BBC: 'Forced labour' of migrants in UK food industry

Besides collecting posts on various topics and allowing researchers to search the data in English, WeiboScope can also check the same post several times to see whether it becomes inaccessible.

WSJ: Watching How China Censors