Apply Refer

Apply Refer is a "tell a friend" script that you can add to your web site, and have your visitors easily email their friends about your website or specific page. Features include: Customize recommend it form, customize message that is sent, blind copy administrator on each message sent, customize the persons first and last name to appear in the referral message, view statistics on all senders and receivers, calculate viral marketing rate (the rate at which visitors who refer others go on to refer even more visitors to your site), send e-mails in text or HTML format.