Just a little constructive criticism, you really need to be aware of the spelling and grammatical mistakes in your post. If you plan to be recognised as an expert in your niche, and if business owners are your target market, then a more professional approach to your own blog would stand you in good stead.
Other than that, your post raises a couple of valid points, especially the concept of a business blog hurting the business more than helping if not maintained correctly. I'd be reluctant to recommend free hosting for business websites, especially given how easy it is to install wordpress in a subfolder.
Great design by the way.