Darren Rowse of ProBlogger in the following video gives all beginner bloggers some simple yet very effective advice on how to start out.
1) Identify a need that you can address
2) Write consistently everyday
3) Connect with your readers via email, replying to comments etc. Love your readers to bits no matter how few they may be to begin with.
If blogging still eats up into too much of your time that would otherwise be spent on your core business, you can always hire a professional yet cheap article writing service or SEO writer to help you out with your blog!