The fight to study what happens on Facebook

Facebook recently added a new report to its transparency center. The "widely viewed content" report was ostensibly meant to shed light on what's been a long-running debate: What is the most popular content on Facebook? The 20-page report raised more questions than answers. For example, it showed that the most viewed URL was a seemingly obscure website associated with former Green Bay Packers players. It boasted nearly 90 million views even though its official Facebook page has just a few thousand followers.