I've had quite a few fellow bloggers email me to mention that they weren't on my blogroll. I assure you if that is the case, it's not intentional. I have almost every blog that I know of in my subscriptions to Google Reader. I've just failed to maintain the links on TNB.
If you notice that your blog is not listed and you would like for it to be, please email me or leave me a comment and I'll get it on the list ASAP.