The Louisville Courier-Journal ran a nice article explaining why the muse causes people to blog, even if the blogger who writes has no readers:
Bloggers let the world see their thoughts
But most voices in the Web wilderness don't carry that far
The reporter, Mark Coomes, probably comes closer to explaining the phenomenon of blogging for no audience than did Katie Hafner's article that profiled me last year in The New York Times.
Thanks to Carrie Rathbun Hawks for the pointer.