Ages: both 28
Location: Birmingham, Ala.
Employees: 12
2006 Revenue: $1.7 million
Year founded: 2001

Mental Floss magazine offers a fun, irreverent look at knowledge and facts. As Pearson put it, "Our mission is to find anyway we can to blur the lines between education and entertainment." The founders started the venture at Duke University as a campus publication and quickly turned it into a national magazine. But they have pushed the brand further than the magazine -- producing books, board games, and soon a series of children's books.