Global Voices Advocacy, a worldwide network of anti-censorship bloggers and net activists “dedicated to protecting freedom of expression and free access to information online” have created an Access Denied Map: “The Map does not aim to index all kinds of web filtering, but rather to provide an overview of online censorship efforts related to the social web and major web 2.0 websites. This project will also track and explore the relationships between anti-censorship groups in different parts of the world who are collaborating to defend the right to access web 2.0 tools and websites. “