Facebook is not a blog because it is not written in a linear format. While Facebook does have a “blog-like” interface, it is not written in a linear format like blogs are. Facebook’s interface is more like a timeline with posts on the left-hand side, and users can add photos and videos to their posts. Additionally, the comments section at the bottom of posts is similar to what you would find on blogs.
However, unlike blogs which are typically updated daily, Facebook updates posts only occasionally. In conclusion, Facebook is not a blog because it does not follow the traditional blogging format.