If the subject is important to me—or if there is any chance that it might influence my view of the world, I check it at Snopes. The reputable web site confirms or debunks many urban legends and all sorts of viral web hype.

You never know what you might learn at Snopes. You can easily be lured into a rabbit hole, digging into the site beyond whatever prompted your visit in the first place.

Fact-checking can be fun! For example:

• Debunked: There are no alligators living in New York sewers. If a resident flushes a baby alligator in a toilet, it cannot survive the temperature or the toxic soup that flows through the sewers of a big city. Florida: perhaps; New York: impossible!
  
• Debunked: Ronald Reagan did not write a diary entry in which he describes his vice president’s son (the future president George W. Bush) as a shiftless ne’er-do-well, roaming about the White House.*
  
• Confirmed: This one is true! In 1976, during the filming of TV series, Six Million Dollar Man in Long Beach California, an arm fell off a scary, fun-house prop. A film crew found that it was the cadaver of outlaw Elmer McCurdy, who died in 1911.

I’m still occasionally guilty of passing along a story I long believed was gospel. In a few cases, it didn’t occur to me that something accepted as fact might be an urban legend—or that my acceptance of a tall tale is colored by my opinions about economics, society and business. Hopefully, this is a rare and diminishing lapse. I have learned to fact check narratives—especially if I feel compelled to pass one along.