I hope it's okay to post about this. Although it's like an advertisement, I created this for the book blogging community, it doesn't benefit only me.
Check out the post for more details but it's a directory of over 800 book blogs and growing. I provide a form to add or edit your listing and I hope it will be more comprehensive than some of the other directories which are usually smaller.
Let me know what you think and please add or edit your listing. Book blogs only!