Have you thought of a Good Purpose for your blogging, that will give meaning to your blog, read this article on why its' important and maybe let me have your thoughts... The importance of Meaning In the congested blogosphere, how does YOUR blog make a difference?
I think you need to find a niche but after awhile writing about the same things can be boring. My blog started out as a straight debt collection education blog. However, lately I have gotten into some current events and my blog has grown exponentially.