Chew on this for a little while:
“A blog by itself is nothing more than a website, it’s how bloggers interact with one another and the public that has value.”
That means that anyone can drop content in a website and call it a blog. Spam bloggers do it all the time. It’s when the blogger answers emails, talks to readers, carries on conversations with other bloggers, and works openly to publicize their blog that the blog has value.
It’s not about blogs, it’s about bloggers.