| AeroPac's: "Association of Experimental Rocketry of the Pacific" organizes regular high power rocket launches in Northern California and Nevada. |
| Amateur and Ex Rocketry: Information on motor construction, tooling and supplies. |
| Amateur Experimental Rocketry: Rocketry.Org maintains a large web database of suppliers for anything experimental rocketry enthusiasts could want, as well as a global rocketry organizations database and book lists. |
| aRocket: Resources for amateur and experimental rocketeers. |
| Ben's Chemical Propulsion: Tutorials on amateur experimental rocketry, along with videos, launch reports, and pictures. |
| Blacksky: Real rocket science. With references and design equations. |
| Commonwealth Displays: Rocketry site for project parts you need. |
| CTRA-NARCONN: Connecticut Tripoli and National Association of Rocketry. Lists launch information, recent launch photos, contact information or member application. |
| Designing Rocket Motors: Publications, articles, software and discussion groups about chemical rocket motors. |
| Digital Wireless Firing Systems: Digital electronic firing systems for the model rocket enthusiast. |
| High Power Rocketry: This site answers the question: What is high power rocketry? |
| International Experimental Aerospace Society: A knowledge base containing information on experimental rocketry, regulations of various countries, and information on grant opportunities. |
| Jetex Engineering Works: Reference resources about Jetex and Jet-X micro rocket motors and propellants, plus gas generator experiments and propellant development projects |
| Model Rocket Drag Analysis: NAR R and D Report |
| National Association of Rocketry: The NAR is the oldest and largest sport rocketry organization in the world. |
| Pacific Rocket Society: An experimental rocket society, dedicated to liquid propulsion research. |
| Project Earth Crashlander: The Chronicles of Experimental Rocketry. Contains several personal rocketry projects that go into detailed explanation that anyone starting in scratch-built rocketry might be interested in. |
| Richard Nakka's Experimental Rocketry: General information on what amateur experimental rocketry involves, and considerable specific information on motor and rocket design. |
| RRS: The Reaction Research Society is the oldest continuously operating amateur experimental rocket group in the United States. |
| Swiss Propulsion Laboratory: SPL develops propulsion elements for sounding rockets like LOX valves, injectors, regeneratively cooled combustions chambers, igniters, propellant feeding systems and thrust test stands. |
| Systeme Solaire: Information on how to build the SS67B-1 liquid propellant rocket engine. |
| Trailer Trash Aerospace: A group of high-power and experimental rocket enthusiasts in the desert southwest building magnificent things with the thinnest of resources. |
| Tripoli: Tripoli is a non-profit organization dedicated to the advancement and operation of non-professional high power rocketry. Tripoli has members in the United States and 20 countries around the world. |
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