Move over Andy, there is another definition of blogs that I like better than yours. (Just kidding, but it is a good one.) It comes from Halley Suitt, who authors the very popular Halley's Comment blog.
Her definition comes from a manifesto she wrote for ChangeThis.com called The Art of the Alpha Female Blogger. She calls blogs "love letters."
When you think about it, that's what they are, because love has to do with passion. And can you think of a more passionate group of people on the planet than bloggers? I don't think so.
Bloggers obsess over one topic and write about it with impunity. They attract a cadre of readers who share similar passions. It's addictive in its force and, when done well, is compelling, articulate and often cutting edge.
Face it, bloggers are hopeless romantics one and all. If that is indeed the case, I fit right in! (Though I fancy myself as a "hopeful" romantic!)