Do you always wear underwear? Do you like the smell of gasoline? Sorry to be so nosy, but if you could just take a few minutes to answer these and 98 other quick questions, the folks at thespark.com will kindly help you determine such pressing matters as how "pure" you are and how much longer you have to live.
Personality tests, ranging from the silly to the dead serious, are booming online. "Everyone is interested in themselves," says James Currier, CEO of emode.com the leading quiz site, which has quadrupled its traffic in the past year. And...