Invaluable feedback. With printed materials that are handed out, posted or mailed, you have no idea what the client has done with it, or even if they read it. With email marketing you can see what links your clients have clicked on, and how many times. Spread the word. With a forward button on the eNewsletter, you can potentially increase your customer base two-fold. Affordable. Compared to printed marketing (printing, postage, etc), email marketing is significantly a higher return on investment and a great "green" choice. Drive them to your site. After all, this is one of the main po...