I love reading Global Voices.  You have to be careful, though - you can spend weeks there without noticing the time going by.

Here's an entry about Swedish foreign minister Carl Bildt (who once got swept up into ICANN business) blogging his way through his job.  He's not doing foreign policy through his blog, though - it's described by the Global Voices poster as "daily notes dotted down in the margins of a life as a travelling salesman in foreign policy."  Bildt's blog is in Swedish, and I didn't quickly locate a free Swedish-English translation engine, so I can't tell what he's writing about.  The Global Voices entry continues:

It might seem that Bildt has fallen victim to the noblesse oblige of his office, by self-imposed censorship. The truth of the matter may, however, be much closer at hand: As foreign minister, life is simply too demanding to write analytically in the precious little spare time available.

That's understandable.