Well, first of all, as I am strongly against the Internet censorship, I will introduce to you some useful websites to understand the concept of FREE Internet.
Google Take Action is where you can easily understand how do Google, one of the biggest IT company in the world, think of the Internet Censorship.They also have got a webpage named Google Transparency Report, which has got a huge data of how many results on Google do the world's government wanted to get rid of. #freeandopen is a project run also by Google, which we can freely participate and say that "we prefer free Internet" just by tweeting with the hashtag.
Here are some articles in Japanese:
