OpenNetInitiative collecte des données sur le filtrage sur le web à travers le monde en utilisant des outils techniques et en se basant sur l'analyse qualitative et quantitative d'experts.Notez que plus la couleur est foncée, plus le filtrage exercé est fort.
Political: "Content that expresses views in opposition to those of the current government, or is related to human rights, freedom of expression, minority rights, and religious movements."
Social: "Content related to sexuality, gambling, and illegal drugs and alcohol, as well as other topics that may be socially sensitive or perceived as offensive."
Security/Conflicts: "Content related to armed conflicts, border disputes, separatist movements, and militant groups."
Internet tools: "Web sites that provide e-mail, Internet hosting, search, translation, Voice over Internet Protocol (VoIP) telephone service, and circumvention methods."