One of the biggest barriers to using an internet business plan template effectively is not understanding how it was created. Quality templates tend to have a history of testing behind them. During this process a lot of data is gathered and analyzed. From there, the best course of action is chosen and put into a template. If you don't understand why a certain step is being taken within a template then it becomes much more difficult for you to deviate from it while still achieving success. Even if you don't gather the data yourself, it is important to at least have a solid understanding the concepts behind the template. This will allow you to modify it to fit your specific goals while still using an internet businesses plan template as effectively as possible.
The template itself provides guidance and milestones so that you can measure your progress. If you are not achieving the results you want, you can revisit the template to check that you have not overlooked something or misinterpreted what is required.