Blogging in libraries.

I've come across many examples of blogging by libraries, and I'm hoping that through these exercises we'll have some provided on behalf of the library system. My old library system has a publicity blog, as well as a blog kept by the library director. I believe that these two types of library blogs are the most common, as I haven't seen many others, except for a lone librarian posting rants, but those are of a more personal nature.