Interest is low for Digital Photography Blogs

Interest seems to be pretty low for tips on how to use a digital camera. I am not sure how many views there were on my post, but there were no comments leading me to believe that the subject needs to change. I am a little green when it comes to writing blogs, but have a vast array of knowledge and info in many areas that we will get into later. My problem is putting this knowledge and info down in writing for others to understand.
For know, I believe I will stay with Digital Photography blog. But, will move on to other aspects of the subject. I am trying to decide between "Light and Lighting techniques," "Basics in Understanding Exposure," or some "Tips and tricks in Photoshops CS2 and CS3." If you have a preference on a subject or subjects, feel free to leave a comment.