Which of the following is an example of 'richer media'?

Richer media refers to communication channels that provide a higher level of sensory engagement and information richness. Face-to-face meetings are considered richer media because they allow for the incorporation of verbal and non-verbal cues, such as body language, facial expressions, and tone of voice. This multi-faceted interaction fosters a deeper understanding and connection between participants, enhancing the overall communication experience.

In contrast, other communication forms such as text messages, while convenient, lack the immediacy and depth of interaction found in face-to-face conversations. Phone calls do provide some level of richness through vocal intonation and immediate feedback, but they do not convey visual cues like facial expressions or gestures. Bulletin boards, on the other hand, are more static and visual, delivering information without the interpersonal engagement that characterizes richer media. Therefore, the most engaging and comprehensive form of communication among the options provided is definitely face-to-face meetings.