There are several digital publishing sites that will take your blog, including postings, photos even comments, and turn them into a hard or soft cover book. Most of the sites offer e-commerce options to sell the publications from the site as well. One might ask why anyone would want to create a book from a blog? A blog, by definition, is interactive and immediately “updateable” so why turn it into an old-school static book. Even worse, many of the critiques of vanity presses also might apply to would be authors in the digital age: material that commercial publishers won’t touch, egomaniac authors, obscure subjects, etc. 
Personalized digital publishing has been a presence on the web for the last five years and has only become easier. Most of the books involve documentation of highly personal events such as landmark birthdays, vacation travels, family events, children, etc.And, that appears to be the reason for most of the blogs. Check out Blurb’s blog to books sales area and you can see that these books fit the same pattern. A random review of selected “blogs to books” underscored their personal nature of limited interest to family and friends.
So there is an obvious benefit for blogs documenting travels, family reunions, pets or children, but other blogs dedicated to politics, art, education may also benefit from the conversion to a book. For example, I am considering using a blog I created while working on the Obama campaign last year to document the historic Latino participation in this presidential election. My partner on this site, Janet Green, an art professor at CSU East Bay, is contemplating converting an art blog to a book. We are looking to understand why others have chosen to convert their blog to a book so please give us your comments.
Most of the providers of blog services were already in the digital book printing business and developed the blog-to-book service as a specific marketing niche. QOOP, for example, is a company that focuses on ecommerce with established services in the custom print arena such as posters, calendars, etc, using your original photography or art. It doesn’t focus on why authors turn their blogs into books, but assumes that anyone would want to turn their blog into a book if they could. Blog2print, a division of Sharedbook.com has a variety of focused personalized publishing projects including a Legacy book publishing service that will convert a funeral guestbook into a hard or softcover book (just add photos). The layout and design are already set up. Last, Blurb, a favorite among Mac aficionados, provides the most layout and design options to would be blog-to-bookers.
Again, we would love to hear from any of you who have considered or already have turned your blog into a book. Comments welcome!