Mark last week as the end of the social networking era, which began with the rise of Friendster in 2003, shaped two decades of internet growth, and now closes with Facebook's rollout of a sweeping TikTok-like redesign.
The big picture: Under the social network model, which piggybacked on the rise of smartphones to mold billions of users' digital experiences, keeping up with your friends' posts served as the hub for everything you might aim to do online.
