Mark Bernstein refers to peterme.com and asks about blog readers.

I think it's wrong to talk about blog readers and blog writers. In my opinion it's blog conversations. If it has to be compared to non-digital media, I'd say it's more like letters to the editor - without an editor. They are parts of conversations. Some of us talk to ourselves, others talk to a much larger audience, but there is a stream of comments, cross-references and opinions which indicate readership - but readership coupled with writership. No, I won't use authors. That's a different animal all together.