While we at SODP don’t think the decline in Facebook’s page views spells disaster for the site, it does raise the question of why views have dropped.Some industry experts propose that the drop in Facebook’s page views could be attributed to the rising popularity of apps as opposed to browser-based social media use. At SODP, we speculate that one reason for the decline in page views is because the Hitwise numbers only take into account page views from browser-based use, not app use.If page views from the Facebook smartphone app were also counted, we can only assume the numbers would be different. It’s a possibility that more users are accessing Facebook on their phones, while Pinterest users may favor browsing the site on their computers.