Advertising agencies specializing in marketing strategies to promote businesses; Post-production editing of advertising or commercials; Production of advertising materials; Production of film and television advertising; Promotional marketing services using audiovisual media; Providing marketing consulting in the field of social media; Providing information in the field of marketing and on-line marketing media via the Internet; Providing promotional marketing services to businesses in the broadband and media industries; Provision of an online marketplace for buyers and sellers of downloadable video files authenticated by non-fungible tokens (NFTs); Provision of an online marketplace, using blockchain technology, for buyers and sellers of downloadable digital video clips, digital stills, digital merchandise and clothing for avatars, and all types of user-generated items and content authenticated by non-fungible tokens (NFTs)