There are many other varieties of social media sites, though hopefully we have at least covered a decent range of them.
I found the discussion of blurred boundaries between public and private particularly compelling. The text highlights how users may experience social media as an intimate or personal space, while the platform simultaneously functions as a public arena with broader visibility and consequences. This tension helps explain why ethical norms on social media are often unclear or contested, since users may not share the same assumptions about what kind of space they are participating in.