The AMBdigital's Customized Blacklist subscription is $75 (US) per year per filter (quantity discounts shown on the order form). An updated AMBdigital Customized Blacklist is available to subscribers weekly. Blacklist Subscribers Subscribers may contribute entries to be considered for addition to the blacklist download. The staff at AMBdigital reviews all blacklist addition requests to determine if an addition is appropriate. To order a subscription: Download and print the order form. Fill in the necessary information. Fax (or mail) the completed form and purchase order to: fax: 217.324.7743 mail:  AMBdigital 12327 Roberson Road Litchfield, IL 62056 An order acknowledgement and Invoice will be sent by e-mail within 48 hours of receipt.        (Acknowledgement and Invoice will be sent by postal mail if requested.) Upon receipt of payment a link for your blacklist download will be sent to the email contact.