This Wired article highlights a software initiative developed by the Citizen Lab at the Munk Centre for International Studies, University of Toronto, called Internet Censorship Explorer (ICE). “ICE demonstrates state-sponsored content filtering and blocking by delivering the content of blocked URLs to end users. After completing a query form, ICE will attempt to access the user-specified URL or domain using proxy servers located in the designated country. ICE will then display the results returned by the proxy server.” ICE maintains a database that currently identifies domains that are blocked by 14 countries (including the U.S.) Users may submit a blocked URL to add to this database, via this page.