Sometimes other people can say what I have been thinking about about much better than I can, have already written about the topic or have knowledge and information I don't have that the readers of this blog need or want to know about.
So here are a few blog posts worth reading from other sites.
From Joel Friedlander's The Book Designer:
Alan Shepard's review of the new Lightning Source POD color printing service:
From Michael Marcus' Book Making - a post about a different way to proof your book: