The Psychology Behind Fake News – KelloggInsight
The term ‘fake news’ is doing great harm – The Conversation

AZ Fact Check – Arizona Republic
PolitiFact – Arizona
FactCheck – Arizona Archives

Washington Post Fact Checker
AP Fact Check
NPR Fact Check
Facts First – CNN
New York Times Spotlight Fact Check
PunditFact (fact check of pundits, columnists, bloggers, political analysts, etc.)
FlackCheck – Political literacy
Media Matters (progressive)

SciCheck – FactCheck.org
Science Feedback
Climate Feedback
Climate Change – Politifact
Climate Change – Factcheck.org
Climate Change – Global Warming Policy Foundation
Health News Review

All Sides – comparative stories from the left, right, and center
Media Bias Fact Check – check the bias of any source

Open Secrets
Sunlight Foundation
The Psychology of Fact-Checking – Scientific American
Fact-checkers’ code of principles – International Fact-Checking Network
International Fact Checking Day – April 2