Professional Journals as Blogs?

That's what Marcus Banks thinks. Take a look at his latest blog entry on the subject.
He's became firmly convinced that the traditional journal model is antiquated for sharing research and knowledge among librarians. A better course is to develop and nurture excellent blogs, with multimedia capabilities and guaranteed preservation of the postings. This could be an entirely new blog that starts from scratch, or an established journal that evolves into a blog.

What do you think?