X PRIZE Cup
The X PRIZE Cup is be replaced by the Lunar Lander Challenge for 2008. Archive of 2007 X PRIZE Cup and the Holloman Air and Space Expo.
Rocket Racing League
Learn about the aerospace sports and entertainment organization that combines the competition of racing with the excitement of rocketry. Rocket Racing League competes at the annual X PRIZE Cup and other air shows.
Northrop Grumman Lunar Lander Challenge
An X PRIZE Foundation competition, the Northrop Grumman Lunar Lander Challenge is designed to accelerate commercial technological developments supporting the birth of a new generation of lunar landers capable of ferrying payloads or humans back and forth.
Wikipedia: Wirefly X PRIZE Cup
Article about the Wirefly X PRIZE Cup, an annual X Prize Foundation space expo designed to encourage innovation in the private sector.