Zuckerberg and the others saw that the reason people got so sucked in to the site was that they had to surf around to find out what had changed on every friend’s profile page. Users seemed to be most interested in learning what was new. Heck, every time a user simply changed their profile picture, Facebook’s engineers could see in the logs that that led to an average of twenty-five new pageviews.61 If Facebook’s key value proposition was the ability to find out what was up with your loved ones, then maybe they could design a better delivery system for this information. This would become the
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