1. American Antigravity Developing lifter technology; an experimental form of Field-Effect Propulsion being investigated for commercial transportation and payload delivery. http://www.americanantigravity.com/
2. Manned Missions to Mars Manned missions to Mars, Jupiter, Saturn, and all the outer planets are now possible thanks to a newly developed propulsion system. http://www.androidpubs.com/
3. SpaceTethers.com Approaches the problem of lowering the cost to orbit by advocating the idea of a small air-launched suborbital RLV to get to an orbiting spinning tether. http://www.spacetethers.com/