Air-Van
- A concept for a "roadable aircraft" with all flying components secured to or enclosed within the aircraft for land operation.
- http://www.transalt.com/air-van.com/

Roadable Times Internet Magazine
- An exhaustive catalogue of flying Cars and roadable aircraft.
- http://www.roadabletimes.com

Skyblazer - Roadable Aircraft
- Skyblazer automatically converts from car mode to airplane mode and back, so you can fly and drive interchangeably, combining the speed of a jet plane, with the door to door convenience of an automobile.
- http://www.haynes-aero.com

Gress Aerospace
- Describes new technology for VTOL aircraft lift and control as developed by the company, with the emphasis on hovering with just two airplane propellers. Site contains 3D models, drawings, supportive video links and published technical papers.
- http://www.gressaero.com

Power Optimised Aircraft
- Information, news and downloads about a European project on the next generation of systems technology.
- http://www.poa-project.com

How Hypersonic Planes Will Work
- Illustrated narrative describes the scramjet-powered X-43A space plane.
- http://www.howstuffworks.com/hypersonic-plane.htm