Online wagering firm Youbet.com expanded its offerings with the addition of four racetracks, the company announced. Visitors to Youbet can now place bets on races at Gulfstream Park inFlorida, Laurel Park near Baltimore, Oaklawn Park in Arkansas, and Fair Grounds track in New Orleans. The company is working on deals to allow members to wager on all three Triple Crown races the Kentucky Derby, Preakness and Belmont Stakes for the first time since 2006. “With the incremental new content from some of America’s premier racetracks, Youbet.com now has an incredibly broad product offering to satisfy the wagering needs of our current customers,” said COO David Goldberg.