Chinese internet censorship.

The Chinese censorship of the Internet is real and is ugly. You cannot access BBC even though it is available on cable. You can't access certain CNN news items about China. You cannot access Blogspot or Livejournal either.

So how was I able to post this message?

VPN. If you are lucky to have a VPN connection to somewhere outside China, you VPN out and use the Internet from that outside address. Since the traffic coming to your location inside China is through an encrypted VPN tunnel, it apparently goes through the censorship filters. Unfortunately the vast majority of people do not have such capabilities. So the government wins.