>> Mark Zuckerberg has been doing a lot of soul searching lately. Amid reports of fake news and studies linking time online with depression, the Facebook CEO said he wanted to make sure his platform, quote, isn't just fun to use but also good for people's well-being and society. And towards that end, the company has made a string of changes in the Facebook feed, such as showing fewer viral videos that's resulted in less time spent on the platform.
50 million hours less every day according to Mark Zuckerberg's statement in the latest earnings report. While that may be a way to ensure the long-term health of the platform, it seems to make investors jittery, despite a nearly 50% jump in revenue thanks to mobile ad sales. Reuters tech correspondent, David Ingram.
>> 50 million hours a day less sounds like a lot. But Mark Zuckerberg said that the company's most important number has never been the amount of time that people spent on Facebook. They are going to be able to take fewer time and still make more money. So they're looking at higher prices of ads.
They're looking at different kinds of ads that would drive engagement for people on Facebook. So even as people are spending less time on Facebook, Mark Zuckerberg, Sheryl Sandberg, the executive team at Facebook said that they were optimistic they might make more money as a result of all these changes in the news feed.
>> Facebook and other social media have faced criticism that their platforms were manipulated to influence the 2016 US presidential election. Facebook recently said it plans to highlight, quote, trustworthy news in the feed, following allegations that Russian operatives and others spread false reports on the site.