Continuing from the previous post

Write professional content. If you can not do this yourself hire it out. There are people who make a full time living selling products by email. You can be one of them, but if your email marketing course is poorly written no one will pay attention to it and they will never buy anything from you.

Consider selling digital products. No matter what your product is you can add to it by selling digital products that can be downloaded instantly. eBooks are great for this because you find thousands of them that relate to the topic of your course. Another thing you can do is give away a brandable copy of an eBook for free.  Brandable means that it has your i.d. number in it for a product you sell. When people read the eBook you have a chance to make a sale. Make it a viral marketing tool by allowing people to give the eBook away for free as well.In summary you can use an email marketing course to make more money if you do it right. One thing you might do is subscribe to a few courses by email yourself. Create a swipe file and put any good ideas you see in it for future courses of you own.