The Timeline is the front page of your Pincone: everything saved across all folders, newest first, in one stream. It's the first thing in the sidebar and one keystroke away from anywhere (T).
What shows up
Every link anyone saves — in your personal Pincone, that's you; in a team, that's everyone. It's the answer to "what's new around here?" without opening folders one by one. Each item shows where it lives, so you can hop from the stream into the folder it calls home.
Timelines are per-team
Your personal Pincone and each of your teams have their own timelines. Switch teams and the Timeline switches with you — it's the shared pulse of whichever library you're standing in. In a busy team, it doubles as a lightweight news channel of what your people are finding.
Make it yours
The Timeline has the same view switcher as everywhere else, and remembers its choice per team. Feed posts and newsletter issues live in their own pages (feeds and inboxes) — the Timeline is for the things you've chosen to keep.