We read a good, brief article called "Taking 2.0 to the Faculty" for our instructional librarian meeting this morning. I thought it was a great article, and particularly relevant to me since I'm the 2.0 person of the group.
I think every public services librarian should make time for blogs. I don't understand how you can run programs and improve on instruction without reading what other people are doing. I find blogs to be so much more helpful than formally published articles. You miss so much of the practical stuff that doesn't get put into the scholarly literature. It makes me sad for people who don't create the time to browse other librarians' blogs from time to time.