Since then, co-founder Dan Gould said the site has attracted more than 500, 000 unique visitors.

WSJ: Start-Ups Follow Pinterest's Lead

"Part of this isn't a sport problem, part of it is a societal problem, " said Dan Gould, director of the Institute for the Study of Youth Sports at Michigan State.

WSJ: Ref's death a consequence of lack of sportsmanship

Dan Gould, director of the Institute for the Study of Youth Sports, cited academic studies that show adults can usually process about seven bits of information at one time, but kids may only be able to process four or five.

WSJ: A Stathead Carves Out a New Market: High-School Coaches