In June 2008, Technorati.com, an Internet search engine for searching blogs had indexed 112.8 million blogs. When I visited the site in early February 2010, I counted over 65,400 blogs registered by category on the site itself.
With this in mind, it becomes obvious that you can blog on just about any subject. However, this fact raises another question: Can a blogger choose any subject for a blogged book?
The answer is clear: No.
Well, technically a blogger can, indeed, choose any topic. No blogging police will come around to pull the blog off the Internet if the subject the blogger chooses for the blogged book is stupid or boring, for example. No rules have been written down anywhere that say, “You can only blog books on these particular topics.”
However, some blog subjects simply don’t lend themselves to books. Some blog subjects have too small a market; in other words, they won’t generate enough readers to make blogging a book necessarily worthwhile. Some blog subjects are too personal, such as the blog my physical therapist started so he could share photos and news about his newborn baby.
So, my first answer still holds true. No, you can’t just blog a book on any topic. In fact, if you want to blog a book, you must choose your topic almost as carefully as if you were planning to write a traditionally published or self-published book.
Just as they say “a rose is a rose is a rose,” the same holds true for books–blogged or otherwise. A book is a book is a book.