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The Observatory aims to be an efficient and cost-effective way for subscribers to keep abreast of borderless developments globally . As cable operators compete for subscribers with xDSL providers , the speed with which cable operators replace older lines with full-duplex lines will be critical to their ultimate success . It is published online six times a year for subscribers to APA 's Planning Advisory Service . In addition , the account information ( name , e-mail address ) for subscribers to public groups and bulletin board groups is often widely available . But some smaller companies have had a difficult time persuading the major recording companies and entertainment studios to license their copyrighted works for subscribers to download , Mr. Hoch says .