Yes you are right, I agree with your suggestions,

As your suggestion are good bcz I have gone through your blog, People Management, Analyze Costs, Marketing, Advertising and marketing, and Business Management. They are very useful suggestion for business managers, but here is one thing where I would like to share with you, before going to start the business, every people should be perfect in Project Management bcz in every business will start with project, with out project there is no business right! So first they need to be perfect in Project Management I think your site and below site will help full for the people to start the business.