Everyone knows that the key to any successful email program is subscriber engagement. The same goes for email monetization. The challenge lies in training your subscribers to engage, not just "skim" through your emails without any action. Ensuring your subscribers click is paramount to your monetization success. Subscribers should know exactly where to locate value quickly and click on it.
When you do not provide constant and multiple ways to engage, you are leaving money on the table. There are four main components required to train your subscriber's to engage. It's easy to remember them, D.A.R.T.