Computerized, wireless, and mobile on-line ordering services in the field of retail and wholesale consumer goods; providing an on-line computer database in the field of purchasing history and related data; providing business information regarding location and pricing of services; providing directory information, namely, commercial information and directory agency information, telephone directory information, shopper's guide information, trade information; advertising and promoting the goods and services of others by preparing and placing audio and digital display advertisements on handheld telephones and devices, and by providing print, television, radio and direct mail advertising for others; dissemination of advertising for others via an on-line electronic communications network