Being one of the riskiest of choices, the Dragon has never enjoyed a consistent popularity among the top grand masters. It was used only occasionaly as a surpise weapon at the top level. One of our all time chess greats, Garry Kasparov surprised our current world champion Viswanathan Anand in their PCA world championship match in 1995 by employing this opening with very good results. The Dragon, which has been dormant for a while now, has started resurfacing at the top level thanks to our young grand masters Magnus Carlsen and Teimour Rajdabov.
Previously they have looked at the Sicilian Najdorf and the Ruy Lopez. And don't forget, if you enjoy Chess.com and decide to join, don't forget to tell them that EJ sent you. :)