Which of the following best describes an online community?

An online community is best described as a digital platform where individuals interact based on shared interests. This definition encompasses the essence of what an online community represents: a space that fosters connections among individuals who engage in discussions, share resources, and collaborate around common topics or hobbies. The interaction can take many forms, including forums, social media groups, or dedicated websites, where members can communicate, collaborate, and support one another.

In contrast, the other options describe scenarios that do not encapsulate the interactive and communal nature that defines online communities. A group chat that only allows photo sharing lacks the broader communicative aspect necessary for community engagement, while a personal blog restricted to the author does not facilitate interaction with others. Likewise, a website permitting only one user to post content does not encourage communal dialogue or shared experiences, which are critical components of an online community.