According to a survey done by the Pew Research Center in 2016, about 6-in-10 Americans get news from social media. The problem is that some social media links to FAKE news stories. With more and more people using online sources for their news, it is even more important that readers use critical thinking skills to evaluate the news from the various online sources.
Melissa Zimdars, Assistant Professor of Communications and Media at Merrimack College in Massachusetts has compiled a list of False, Misleading, Clickbait-y, and Satirical “News” Sources (PDF) as well as some "Tips for Analyzing News Sources" (Google Doc).
Here is a helpful Fake News Cheat Sheet infographic (PDF) from the City University of NY CUNY Graduate School of Journalism.