Walt Crawford has published Public Library Blogs: 252 Examples.
Here's an excerpt from his posting about the book:
Public Library Blogs: 252 Examples is now available at Cites & Insights Books. Price: $29.50 plus shipping and handling.
The 299-page 6×9 trade paperback (x+289 pages) features descriptions and sample posts for a wide range of blogs from 196 public libraries of all sizes, in the United States, Canada, Australia, Ireland and New Zealand.
If your library is considering a blog, this book should help you find blogs from comparable libraries to consider as examples. If your library has a blog and is considering more (or revising the ones you have), this book should help you find interesting examples–the public library blogging community is remarkably diverse!
For now, Public Library Blogs is only available from the Cites & Insights Books store at Lulu.com, printed on 60lb. cream book stock. In a few days, a version on bright white paper and with an ISBN will be available from CreateSpace–and, a couple of weeks after that, from Amazon.com