In this post, we hear from Definition 6 (the home of my first web programming gig) on how blogs can work for your organization; and they use the Obama campaign as a prime example of how successful they can be.
http://blog.definition6.com/blog/definition-6/0/0/the-power-of-blogs
I agree. Times are changing, and I believe that blogs will be around for a long time. You'd be amazed at the people you can reach by having a blog; I know this because I'm surprised every week when I get wonderful comments from people I don't know. The Internet is a powerful force, man.