Characterizing Web Censorship Worldwide: Another Look at the OpenNet Initiative Data

@article{Gill2015CharacterizingWC,
  title={Characterizing Web Censorship Worldwide: Another Look at the OpenNet Initiative Data},
  author={Phillipa Gill and Masashi Crete-Nishihata and Jakub Dalek and Sharon Goldberg and Adam Senft and Greg Wiseman},
  journal={ACM Trans. Web},
  year={2015},
  volume={9},
  pages={4:1-4:29}
}
In this study, we take another look at 5 years of web censorship data gathered by the OpenNet Initiative in 77 countries using user-based testing with locally relevant content. Prior to our work, this data had been analyzed with little automation, focusing on what content had been blocked, rather than how blocking was carried out. In this study, we use more rigorous automation to obtain a longitudinal, global view of the technical means used for web censorship. We also identify blocking that… 
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