If an online business, you need to go into detail how you will attract customers to your website. General statements will contribute almost nothing to helping your cause unless you have detailed statistical analysis of tests you have conducted or of another similar business you have been associated with. If you do not have any data upon which you reference your estimates, it could show lack of proper thought to the remainder of your business plan.
Each project initiative should have a corresponding project plan that monitors whether it will be completed on-time and on-budget. The importance of the detailed project plan is to accomplish the following: a) identify all the steps to be completed; b) establish a realistic timeline for each step; c) identify and allocate the necessary resources for accomplishing the initiative; d) ensure that the initiative has been vetted for departmental inter-dependencies and potential conflicts; and e) ensure that the initiative is in alignment with the overall strategic plan.