Wolfram Alpha is endlessly facinating. For example, I learned a little trivia factorid today that my wife and I were both born on a Thursday [by putting our birth dates into Wolfram Alpha and comparing them.] It also instantly computed that someone with the equivalent of my current salary would have been making about $23,000 / year in 1946 when I was born. There is a great list of examples here .
"Anything you can't spell will never work." --Will Rogers