Charles Kuffner has a good point - if politicians want to use blogs to help them then they would be well-advised to do their part to grow the audience. And, this goes beyond simple fundraising - encouraging a few more eyeballs to get their news through a different filter will help them as well.
I've never been a blog evangelist. You'll see no Jarvis-esque revolutionary rhetoric from me. There are plenty of people who will never spend their time reading blogs, even if they're interested in news and politics. But, there are also plenty of additional people who would if they became aware of them.
