Tor partially blocked in China
On September 25, 2009, the Great Firewall of China blocked the public list of relays and directory authorities by simple IP address blocks. Currently, about 80% of the public relays are blocked by IP address and TCP port combination. Tor users are still connecting to the network through bridges. At the simplest level, bridges are non-public relays that don't exit traffic, but instead send it on to the rest of the Tor network.
If you want to help people in China get access to the uncensored Internet, run a bridge.
Feel free to mirror this post, or the Tor website. We have a list of mirrors at https://www.torproject.org/mirrors.html.en or search for tor mirrors via Google, Yahoo, Baidu, etc.
Links to other helpful sites (not run by us):
We knew this day would come, https://blog.torproject.org/blog/torproject.org-blocked-gfw-china%3A-so….
An interesting thing I've struck today is blocked websites are having a blank html page sent back so all i get is a white page.
One of the more interesting blocks recently is that google translate is blocked on anything that contains 什么 two very common characters (meaning what). This seems to be a new tactic to make these services seem "unreliable" as sometimes it will work and sometimes it won't, depending on weather or not you have "什么“ in your page or not.