I suppose my title would put some off as a political topic. However, all educators who have students make use of online resources should consider online disinformation as an important topic. The resources I provide below came to my attention through a post from educator Wesley Fryer who generated a podcast recommendation on his way to a digital literacy conference.
Raw Data, originated out of a Stanford group, has a series on online literacy. Several episodes present details of the Russian interference in the 2016 election. I recommend this episode if want a taste of the style and content. The featured interview is with previous U.S. ambassador to Russia Michael McFaul. McFaul is now banned from entrance to Russia falsely accused of being a U.S. agent.