It seems AsiaPundit, Glutter, BillsDue and a number of other sites are presently not directly accessible from Shanghai or Chengdu. I'm not sure if this is temporary or not, although my initial impression is that the ban on TypePad-hosted sites may have been restored.
Simon World can still be read from Shanghai, although not in Chengdu.
I'd appreciate it if China-based visitors who can access would comment on whether this site is blocked in your region.
(UPDATE 20:30) Verified through a tech-savvy friend on the Shanghai webloggers list, TypePad is down in Shanghai.