Advertising and marketing; Appointment reminder services; Appointment scheduling services; Computerized database management; Data processing services; On-line advertising on a computer network; Providing business information via a web site; Providing business information, also via internet, the cable network or other forms of data transfer; Providing commercial information and advice for consumers in the choice of products and services; Systematization of data in computer databases; Systemization of information into computer databases; Updating and maintenance of data in computer databases