Update: It's back.
A lot of Facebook users are noticing that the ticker is gone from their homepage today.
The ticker, if you're unaware, is the panel that shows every piece of activity your Facebook friends are engaging in. It's like the News Feed, if the News Feed actually showed you everything. That means status updates, comments friends have made on others' posts, things they listened to on Spotify, things they have liked, etc. All in real time.
Now it appears to be gone, at least for a substantial portion of Facebook's users. Nobody here at the office is able to see it, and there are a lot of people on Twitter talking about it too.
In fact, we're noticing that a lot of people are searching Google and other search engines for information about it.
Earlier this year, Facebook introduced the new News Feed, with different variations. Some of these included the ticker, but put it down in the corner, where it is less noticeable. Some didn't get the ticker at all.
It's unclear just how many of Facebook's users have even gotten the News Feed redesign at all. It's still slowly rolling out. Many, many people still have the old look, and the ticker has remained present all this time, but is even gone from that style now (again, at least for a significant number of the social network's users).
The fact that so many people are talking about it missing and searching for info about it suggests that there are quite a few using it. If you're one of those people, you're probably going to have to get used to it being gone, as it's looking like it's not really part of Facebook's future plans.
You'll just have to rely on what Facebook chooses to show you in the news feed. They're messing around with that too, by the way.