Pulitzer Prize wining site run by editors and reporters from the Tampa Bay Times (Florida) newspaper. "PolitiFact is a fact-checking website that rates the accuracy of claims by elected officials and others who speak up in American politics.... The PolitiFact state sites are run by news organizations that have partnered with the Times." Read about their principles under 'About Us.'
"FactCheck.org is a project of the Annenberg Public Policy Center of the University of Pennsylvania....a nonpartisan, nonprofit “consumer advocate” for voters that aims to reduce the level of deception and confusion in U.S. politics. We monitor the factual accuracy of what is said by major U.S. political players in the form of TV ads, debates, speeches, interviews and news releases."
"Headquartered at the Annenberg Public Policy Center of the University of Pennsylvania, FlackCheck.org is the political literacy companion site to the award-winning FactCheck.org. The site provides resources designed to help viewers recognize flaws in arguments in general and political ads in particular."
"The purpose of this Web site, and an accompanying column in the Sunday print edition of The Washington Post, is to “truth squad” the statements of political figures regarding issues of great importance, be they national, international or local."
"From Friday (7 April) users in 14 countries will be presented with a large post at the top of their feeds with messages such as “it is possible to spot false news” and linking to 10 tips for identifying misinformation including checking web addresses and being sceptical about headlines which make shocking claims. ... The post will be rolled out over three days and users will only see the message up to three times."