Blogging is kind of interesting. Have you ever thought of the number of people who actually look at your blog and don't make comments? Believe me they do exist. They do see it and many of them do read your blog. Just because you are not getting as many comments as you would like, know that you've got readers.
You would be amazed how the same blog in different networks get totally different responses. I've blogged here in this network and gotten "no" responses and I've used the same blog in different networks and got overwhelming responses. (Notice I didn't name any networks...lol). That's to give you a chance to respond to this blog.
Seriously, I want to encourage you to continue to blog. Another key is to comment on the blogs of interest to you. We bloggers tend to return the favor when a fellow blogger makes a comment on our blog. In fact, a lot of new friendships are created and believe it or not sometimes new business comes from just being nice to another blogger.
In closing, just because you don't see comments on your blog doesn't mean you don't have readers.
Keep on blogging,