Fact checking everything from urban legends to news reports, "...the oldest and largest fact-checking site on the Internet, one widely regarded by journalists, folklorists, and laypersons alike as one of the world’s essential resources."
The Poynter Institute for Media Studies is a non-profit school for journalism located in St. Petersburg, Florida. In April 2019, they analyzed a variety of fake news lists and made a list. A few days later, after complaints from the sites listed as "unreliable" and from readers, they removed the list.