the meaning of ecommerce (social commerce): buying and selling goods and/or services via social media channels
the methods of digital advertising media: social media advertising and other internet advertising (including websites, search engines), display advertisements, video advertisements, email marketing, digital billboards and social media influencers
the different methods of communication: letter, telephone, face to face, videoconferencing, email, web-based chat (including chatbots), social media and posters