Advertising and business services, namely, securing airtime on all forms of media communications stations, systems, networks, and services for the purpose of promoting the goods and se rvices of others; Development, operation and administration of digital signage systems and digital advertising systems for others, namely, providing advertising space by electronic means and global computer information networks; Placing advertisements for others; Preparation of custom advertisements for others; Preparing advertisements for others; Preparing audiovisual displays in the field of shopping-mall advertising; Preparing audiovisual presentations for use in advertising; Providing television advertising for others; Provision of advertising space by electronic means and global information networks