E-mail continues to be a viable direct marketing tactic. Seventy-eight percent said they made a purchase as a result of an e-mail, 59 percent redeemed an e-mail coupon in a store and almost one-third have clicked on an e-mail and made an immediate purchase. Another third reported clicking on e-mails for information and returning later to make purchases.
This comes from a report put out by Doubleclick. For all the talk of RSS & SPAM, people still love email when it's done properly.