That is the question? I say blog. I love to write and to pontificate. So what if no one is reading, it is still out in the universe.
For business, blogging is an opportunity to share insights, thoughts, concerns and latest tips and tricks to help your clients. It's all good stuff. I like to think of a blog as an online newsletter. It gives companies a way to stay current and relevant in a rapidly changing and disposable world. Here you can be up to date in seconds.
So I say go ahead, blog away.