The OpenNet Initiative (ONI) is pleased to announce the availability of our summarized global Internet filtering data as a downloadable CSV file under a Creative Commons license. The data provides an overview of the most recent ONI ratings of the breadth and depth of Internet censorship in seventy-four countries across four content categories (political, social, Internet tools and conflict/security). This release makes ONI data more accessible to researchers, journalists, and data mash-up developers.

The data is available on our research page, along with a description of our methodology.

This release is in part timed for the Hack4Transparency being held November 8-9, 2011 in Brussels as part of ONI support for the event.

We are excited to see what the community does with this data and invite feedback and suggestions for future releases.