SDMB
SDMB may denote a corporate surveillance and data‑management unit, the Arizona State University Sun Devil Marching Band, a geological province in Texas, an online discussion forum, or a regional mountain‑biking group.
Miscellaneous
Straight Dope Message Board
Sonoran Desert Mountain Bicyclists
Satellite Digital Multimedia Broadcast
Satellite Digital Multimedia Broadcasting
Sonoran Desert Model Builders
Sonoran Desert Moutain Bicyclists
State Digital Map Base