From Danwei blog:
Sina may boast actors, writers, and other big-name celebrities, but only Bokee claims a Premier.
There’s only one category: “Affairs of State,” and the Premier post about statistics, mostly. All publicly available information. Mine accident deaths. Corruption sentences. Doesn’t look like he’s leaking any state secrets.
UPDATE: see also What happened to the Chinese Premier’s blog? by Rebecca MacKinnon.