From Tyler Cowen at Marginal Revolution; see item 3 which points to two posts. The first by Felix Salmon (Blogonomics 301 with Tyler Cowen), the second over at The Economist's blog, Free exchange (How to sell books). From Felix Salmon's post, you can download Cowen's talk (the talk is over an hour long, the linked *.m4u file is 250 megs, so watch out).

Lots of interesting stuff in Cowen's talk. I'm wondering, though, how what Cowen says applies to the biblioblogosphere.

In the biblioblogosphere, are blogs loss-leaders that basically promote a good of some sort (either a book or books by the blog author, or the author himself/herself)? Whether intentional or not, do they just serve to promote the author? (If so ... I guess I need to write a book soon)

On an unrelated side note, I'm more and more convinced that "blog reader" really isn't an appropriate term anymore. There may be people who actually read every word written on a particular blog (and therefore are blog readers; if you do that with my humble blog here, wow ... boy, do I appreciate you!) but I think the better label is probably "blog follower". That is, I think people follow blogs, they don't necessarily read blogs. They might read or skim an article that has a provocative title; but they certainly don't read everything. There's no way anyone can really read 200 blogs; but it is possible to follow 200 blogs.