Should I change the blog up?

I keep tinkering with things on the site, and as our readership grows I would like to get some feedback.
I have heard that some people do not like a dark background and white text. Is this true? Should I change it?

I have thought about getting rid of some of the stuff in the side bars. If I did, what should I get rid of?

This is not just mine anymore. Everyone who contributes, comments, or reads it should have a say. After all I am a free marketeer, and I want the produt to meet the needs of the consumers.

Feedback please