Youbet.com notched its second leg of the Triple Crown Tuesday when it signed a two-year marketing and content agreement with the Maryland Jockey Club.On Monday, the California online racing and wagering company announced it would be the official online wagering platform for the Kentucky Derby (gr. I) and signed a one-year marketing agreement with Churchill Downs Inc.In Maryland, the agreement provides for on-track promotion of Youbet.com at Pimlico Race Course and Laurel Park. The Pimlico spring meet began April 3 and the highlight the meet, the Preakness Stakes (gr. I), will be held May 18. "We are very excited about Laurel and Pimlico becoming part of our ever growing network through our new relationship with Maryland Jockey Club," said David Marshall, chairman and chief executive officer of Youbet.com. "This co-marketing and content agreement is another step in our efforts to expand our marketing presence nationwide by partnering with the premier tracks and clubs in the industry. Maryland Jockey Club is a highly regarded association in horse racing, and we believe this will be a mutually-beneficial partnering arrangement in terms of visibility and track promotion."Youbet.com already had the capability of offering online wagering on the Preakness. The Maryland Jockey Club renewed its agreement with the company about five weeks ago.Marshall has said he is interested in working with all Youbet.com partner racetracks on initiatives that will draw more fans to racing and increase his company's exposure.