It occurs to me that I’ve been maintaining a micro-blog for years at http://radio3.io/users/tedchoward/. I don’t think of it as a blog, it’s more of a way to share links. It also auto-posts everything to Twitter.
I’m experimenting with “micro” blog posts. Technically they are just regular blog posts without titles. The idea is that they are quick thoughts, not essays. They are the kind of writing that would normally be posted to Twitter or Facebook.