NAR websites
NAR National Association of Rocketry
NARTS NAR Technical Services
NAR Competition

Tripoli site
Tripoli Rocketry Association

Forums
YeOlde Rocket Forum
The Rocketry Forum
Rocketry Center Forums

Great Sources
Apogee Component Youtube channel
Vern Knowles
Richard Nakka’s Experimental Rocket site
ThrustCurve
John Coker’s Rocketry Site
Vintage Estes Rockets
Jim Z’s Rockets Plans
YeOlde Rocket Shoppe

Scale Modeling sites
Aerospace Projects
Encyclopedia Astronautica
Gunter’s Space Page
NAR’s repository NARTS
NASA Technical Drawings