Created by the Electronic Frontier Foundation. This new website seeks to improve transparency of Twitter, Google and Facebook in take-down policies and to understand their nature and impact. It encourage users to report instances and collects news stories. It maintains a bibliography of online readings.
Also on this topic a recent report on public opinion about free speech can be downloaded from the Pew Research center website It surveyed people from 38 nations on their attitudes to free speech, freedom of the press and free speech on the Internet. Did they feel some topics should be censored – download the report to find out more!