Hi there. Don't know if it's much use to you, but there is a recently published book called Ultimate Blogs: Masterworks from the Wild Web.

Oh, and here's another one I saw at a store the other day... Blogging Heroes: Interviews with 30 of the World's Top Bloggers.

Thank you Ricardo. I read these books a little bit at the store, but these are not the kind I’m searching for. I need more theoretical information about these things. Actually I ordered some books especially about Corporate/Business Blogs now. Will see …

A poem about books about blogs would be a great way to suss out the nuances a book about blogs might not capture.