Wall St. Journal:  “What Eliot Ness was to mobsters and Inspector Clouseau was to fictional jewel thieves, Brendan Wilhide is to Twitter.  Yes, the popular social-networking tool now has an enforcer—public-relations specialist by day, Internet private eye by night.   With more than one-third of the NBA, hundreds of NFL players and scores of major leaguers on Twitter, Mr. Wilhide spends several hours a day determining which athletes’ accounts are phonies and which are legit.  When he confirms imposter “tweets”—the short text messages sent out to people who sign up for Twitter updates—he posts an alert on his Web site, SportsIn140.com.”