| AVDB: An experimental aircraft database. Find data and photos on completed and flying aircraft. |
| Aviation Safety Data Exchange: Site for safety information and regulations for amateur built aircraft |
| Eggenfellner Aircraft: Automotive Engine Conversions for the RV6, RV7, RV8 and RV9 experimental, homebuilt and kit planes |
| GyroCraft.Com Gyroplane Information Exchange: An information exchange for anyone building or flying a gyroplane. |
| Homebuilt.org: An index and reference on homebuilt aircraft, and other areas of Sport Aviation. |
| Janowski Aircraft Page: Features the J-1B Don Quixote, J-2 Polonez, J-3 Eagle, J-5 Marco, and J-6 Fregata designs by Jaroslaw Janowski of Poland. |
| MD-RA Inspection Services: The official body responsible for the mandatory inspection of amateur built aircraft in Canada. |
| Official Guide to Experimental Aircraft: Online directory for all types of experimental aircraft including homebuilt kit airplanes, ultralights, rotorcraft, sailplanes and amphibious aerocraft. |
| Philip's JT-5B Autogyro Construction: Philip Mac Cabe's plans built JT-5B Autogyro project. A builders log of construction methods used ex. fiberglass work, welding and machining. |
| Sportaircraft - Experimental & GA Resource: Resource and Ezine on experimental, homebuilt, ultralight airplanes, rotorcraft and general aviation aircraft that EAA enthusiasts build and fly. |
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