There never is as much info out there on the Belmont as on the Derby, so be sure to check the Triple Crown section as well. In addition, most places are quite late updating from the previous year and may wait until as late as a week or two before the race. The Belmont will be on June 7, 2014.
Triple Crown Info - Only 11 horses have won the Triple Crown, but 20 have won the Kentucky Derby and Preakness only to fail in the Belmont and 6 of those were since 1997! Find out who they were and who beat them.
Triple Crown Spoilers - details about the horses who upset the previous horses going for the Triple Crown and the path they took to achieve this.
Belmont Media Guide - for 2013 from NYRA split into sections which are in PDF format. Includes all kinds of interesting stats plus charts for all the previous runnings.
Belmont Park Ticket Info - has the Belmont Stakes ticket applications and locations. Prices and seating diagram are in the application.