Even if misinformation may propagate easily via social media, these platforms
may be essential to combating its spread. After all, social media can spread
corrections in addition to misinformation (Vraga 2019). Much work focuses on
efforts by social media sites to prevent the spread of misinformation or other
harmful rhetoric in the ﬁrst place (for reviews, see Guess and Lyons, Chapter 2,
and Siegel, Chapter 4, this volume). However, social media platforms can also
play an active role in correcting misinformation after the fact. To this end,
scholars have studied the effectiveness of two types of social media–based
corrections: algorithmic and social corrections. Some social media sites have
built-in functionalities that can be deployed to combat misinformation. For
example, Bode and Vraga (2015, 2018) focus on Facebook’s “related stories”
feature, which recommends relevant articles underneath shared links, and ﬁnd
Social_Media_and_Democracy