AllSides - focuses on bias by rating news stories Left, Right, or Center
Chequado - chequea los dichos en el discurso público y los clasifican de "verdadero" o "falso"
FactCheck.org - checks the factual accuracy of statements. See also SciCheck, which focuses on science stories
Hoaxy - shows how news spreads
Media Bias Fact Check - evaluates media publications by left, right, center
News Fact Checking Sites
Open Secrets - tracks donors, interests groups, PACs
Pew Research Center - nonpartisan research on journalism & media
PolitiFact - researches statements and rate their accuracy on the Truth-O-Meter
RAND - objective analysis of public policy issues
Sharethefacts - a fact-checking widget you can share on facebook or twitter
Snopes.com - researches rumors & hoaxes
Southern Poverty Law Center - research on hate groups
WhoIs Directory - lists who owns domain names
To investigate who published this site, leave the Web page itself, open a new tab, and look at what the Web is telling you about the source. For example, look up the publisher on Wikipedia, to quickly check for credibility.
Original vs. Re-Reporting
Go "upstream" to find the original reporting source.
If a trusted fact-checking site (e.g., Snopes, FactCheck.org) has already verified your source, then you can rely on their work to save you tons of time!
Source: International Federation of Library Associations & Institutions