facebook was a social network. now it's just a phonebook. Instagram has replaced the social network portion of it for most people. People that want to stay conn

facebook was a social network. now it's just a phonebook. Instagram has replaced the social network portion of it for most people. People that want to stay connected but don't want to be social use facebook only. Tiktok is a viral video app. Just like Vine was. Vine failed and left a hole. Tiktok went in and filled that hole. That's it.