Do you read politician blogs? I confess I never do, because I always figure that they're written by some PR-minded staff member. This UK report details a study of political blogs and their value, interactivity-wise (via the Guardian).

This paragraph explains my doubts better than I ever could:

However many jokes they tell or safe vulnerabilities they expose, the public will never relax in their company and will be ever suspicious that today's 'spontaneous" blog entry was yesterday's faxed 'message' from the party HQ. Blogging politicians are always going to be seen as a little bit like those old Communist apparatchiks who had to sit in the front row at rock concerts and pretend to swing to the beat.