Which of the following is NOT considered a form of social media?

UHF radio transmissions are not classified as a form of social media. Social media is designed to facilitate online interaction, sharing of content, and community building among users. In contrast, UHF radio transmissions operate through radio frequencies for communication without the interactive, user-generated features that define social media platforms. It typically involves broadcasting information to a wide audience rather than enabling direct users' engagement or content sharing within a community.

In essence, the key difference lies in the interactive nature of social media tools like social networking sites, blogging platforms, and discussion forums, where users actively create content and engage with one another. UHF radio, however, is predominantly a means of one-way communication, lacking the reciprocal interaction characteristic of social media platforms.