From a WSJ story about Chinese bloggers and citizen journalists battling the censors during recent protests in Guizhou province:
…bloggers on forums such as Tianya.cn have taken to posting in formats that China’s Internet censors, often employees of commercial Internet service providers, have a hard time automatically detecting. One recent strategy involves online software that flips sentences to read right to left instead of left to right, and vertically instead of horizontally.
The drawn-out battle between government censors and activists or just internet users — the Chinese intriguingly use the term “netizens” — continues to be one of the most interesting reporting assignments I can imagine. Because the front is flexible, the actors continuously improving their tactics and technology — and because the eventual outcome is so important, and of course because there are brave individuals such as Zhou Shuguang aka Zuola involved. His motto: “You never know what you can do till you try.”