One thing about my business, I don't sell templates. I only sell REAL content. I believe that template is only to give you the general overview of direction but not how_to do it. That's why I highly not recommended you choose to download or purchase marketing templates because I have seen them i personally think it won't help you much. Let me share you a recent story about template.
The e_marketing plan is built exactly on the same principles as the classical plan. There is no different approach, but there might be some formal differences given by the uniqueness of the internet environment. Many of these differences come from the necessity to ensure a high rate of responsiveness from the customers, since the e_world is moving faster and requires faster reaction from its companies, compared to the traditional offline marketplace.