I'm writing an essay about Internet censorship in China and would like to have more sources.

I performed a Google Book Search the books doesn't seem very useful. If there is any book particularly focusing on Google's censorship in China, that would be great.

Thanks guys!

I don't think there's a book yet, but there's plenty of articles.

Have you seen the material on:

http://opennet.net/

http://www.rsf.org/IMG/pdf/Voyage_au_coeur_de_la_censure_GB.pdf

The Net Effect By Steven Cherry
http://www.spectrum.ieee.org/jun05/1219/1