According to this guy, feeds powered by Feedburner are now being blocked by domain in China. Feedburner, in case you weren’t aware, services 200,000 blogs and 20,000,000 feed readers. So, when William Long noticed his subscriber count drop to 0, he tried to access Feedburner from China (which failed), and then access Feedburner through a proxy (which worked). So, the Chinese government made a smart censorship move against bloggers and cut a huge amount of access with one fell swoop.

Steve Rubel cuts to the heart of the problem:

This is a big deal. Essentially, the Chinese government is choosing to block some of the most popular RSS feeds in the world. That’s like they decided to block the largest airline from their airspace. It is as close as you will see a nation coming to blocking the entire RSS/podcast transport.