Which is a basic form of social media?

A social network is indeed a basic form of social media. It facilitates the connection and interaction between individuals or groups where users can create personal profiles, share information, and engage in conversations. This platform enables the sharing of various content types such as text, pictures, and videos, which are essential characteristics of social media.

The other choices, while related to communication and content sharing, do not represent the fundamental concept of social media as clearly as social networks do. A smart board is a technology tool for presentations and education, not a social platform. A content community focuses on sharing specific content types but lacks the broader interactive social connections found in social networks. A blog primarily serves as an individual platform for sharing thoughts or information, but it does not inherently provide the same level of community interaction that social networks emphasize. Thus, the defining characteristic of social networks as platforms for social interaction makes it the best choice in this context.