Fil Menczer, a professor of informatics and computing at Indiana University who has studied the spread of misinformation on social media, said Google’s move with AdSense was a positive step. »One of the incentives for a good portion of fake news is money, » he said. « This could cut the income that creates the incentive to create the fake news sites. »However, he cautioned that detecting fake news sites was not easy. « What if it is a site with some real information and some fake news? It requires specialized knowledge and having humans (do it) doesn’t scale, » he said.