What defines a blog?

A blog is primarily defined as a form of writing that is published on the internet. While blogs can include a variety of elements such as text, images, videos, and hyperlinks, the critical characteristic that sets them apart is their online platform. They serve as a space for individuals or groups to share information, opinions, and experiences with a broad audience through digital means. This online medium allows for immediate interaction and engagement through comments and shares, distinguishing blogs from traditional forms of writing that are not primarily created for an online audience.

The other options suggest limitations that do not accurately reflect the nature of blogs. For example, the notion of writing done exclusively in printed form does not apply, as blogs are inherently digital. Similarly, writing for strictly academic purposes does not encapsulate the diverse and often informal nature of blogs, which can cover countless subjects beyond academia. While multimedia elements are common in blogs, they are not a defining characteristic since blogs can also be text-based without visual content. Thus, the correct understanding of a blog centers around its existence as content published on the internet.