I'm doing a research project related to online censorship, which you can help with, by visiting https://research.owlfolio.org/active-geo/ in any reasonably recent version of Firefox, Chrome, or IE. (You must have JavaScript enabled. It doesn't work in Safari, which unfortunately means you cannot use an iDevice.) Press the Start button on the map, wait for it to finish, and then click the "Tell me more" button (which appears when it's done) and read the text and follow the instructions. It is especially helpful if you do this on a computer physically located somewhere other than Europe and North America.
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