Fact Checking Sites

There are excellent sites for fact-checking.

Politifact
Factcheck.org
Washington Post Fact Checker
Snopes
Truth Be Told
NPR Fact-Check
Lie Detector
Hoax-Slayer
Climate Feedback
SciCheck
Quote Investigator
Guardian Reality Check
BBC Reality Check
Full Fact

So long as you are willing to challenge your beliefs and are ready to admit when you are wrong, these sites are helpful.

You may want to know who funds the site, wrote the article, and if any other trustable site repeated the claim.