FactCheck.org : This organization checks 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.
Snopes.com : This highly regarded rumor analyzing site has been researching rumors since 1995.
Politifact.com : PolitiFact staffers research statements and rate their accuracy on the Truth-O-Meter, from True to False. The most ridiculous falsehoods get the lowest rating, Pants on Fire.
Media Bias Fact Check: independent online media outlet dedicated to educating the public on media bias and deceptive news practices.
Real or Satire: Homepage search box allows users to check if a URL is a satirical site.
FactCheck.org: nonpartisan, nonprofit “consumer advocate” for voters that aims to reduce the level of deception and confusion in U.S. politics. Monitors 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.
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