Which of the following is NOT a type of communication channel?

In the context of communication channels, the focus is on the modes through which information is conveyed. Written, visual, and interpersonal are all established types of communication channels.

Written communication refers to any form of message that is documented, such as emails, reports, and memos. Visual communication involves the use of images, graphs, charts, or videos to convey information and ideas visually. Interpersonal communication pertains to direct, face-to-face conversations or interactions between individuals, allowing for immediate feedback and personal connection.

Social media, while a useful tool for sharing information and engaging with audiences, is more accurately classified as a platform or medium for communication rather than a distinct type of communication channel itself. It integrates various communication methods (text, imagery, video) within its framework, but does not represent a standalone channel like the others listed. Thus, identifying social media as not being a type of communication channel aligns with the understanding of communication modes in professional and organizational contexts.