Which strategy does Facebook use to keep users scrolling?

• A. Personal Notifications Replaced With Ads Between Notifications
• B. Frequent Pop-Ups Cause Scrolling
• C. Ads Placed Between Personal Notifications
• D. Notifications Are Random

Answer: (C)

The strategy hinges on how social feeds sustain attention by blending social cues with continuous content exposure. Personal notifications act as strong re-engagement cues—they signal that something relevant to you is happening. If ads are placed between those notifications, the user encounters a seamless stream of content and promotional material without a disruptive pause. This maintains the flow of scrolling and increases overall time spent on the feed, because each moment of anticipation (waiting for the next notification) is followed by more items to view, including ads that are designed to catch interest just as users are already in a scrolling mindset.

This design leverages the idea that people are drawn to immediate, relevant information and that interleaving ads with familiar, personally relevant cues keeps attention in the loop. In contrast, replacing personal notifications with ads would remove a personally meaningful trigger and likely disrupt engagement. Making ads appear as frequent, abrupt pop-ups would be disruptive and could reduce scrolling rather than sustain it. Creating randomness in notifications would reduce predictability and make the scrolling pattern less efficient, whereas placing ads between personal cues uses a predictable rhythm that keeps readers moving through the feed.