I use Mad Mimi because it's a simple + powerful web based e-mail tool that makes e-mail marketing super easy. But what I absolutely love about Mad Mimi is that it allows me to create branded + beautifully designed newsletters + stunning promotions. And that's not all, Mad Mimi also lets me track the viewing + clicking behavior of my mail recipients in real time. And the customer service gets my 5 starts for it's awesomeness + speediness + amazing customer support.