Would you mind if your goverment ban something like "al-Qaeda's official website"? When somebody is talking about killing citizens of your country, it has nothing to do with freedom.
My government (the US government) does not currently block or censor any internet website. They may throw their weight around from time to time where some say they shouldn't, but no - there is no direct filtering of internet traffic - nothing is banned. In the US free speech is free speech - even if that free speech is anti-US or anti-government.
