FactCheck.org
A project of the Annenberg Public Policy Center that checks the accuracy of political statements, news, and claims
PolitiFact
Run by the Tampa Bay Times (which is owned by journalism school the Poynter Institute), this site checks and ranks political claims
The Poynter Institute / Fact-Checking Resources
The Poynter Institute serves as the world’s leading resource for journalists to engage and inform the public in democratic societies.
Media Bias/Fact Check
Aims to call biased or deceptive news and media practices