dB Drag Racing Association
- Official resource site of the dBDRA. Find news, information, events coverage and schedules.
- http://www.termpro.com/dbdrag/

Team ROCS
- A worldwide organization dedicated to promoting car audio and providing accurate, helpful information to enthusiasts.
- http://www.teamrocs.com/

National Car Audio League
- Official source for NCAL. Create and manage a team, view other teams and browse events.
- http://interoz.com/ncal/

Irish Auto Sound Challenge Association
- Information on the Irish sound-off scene.
- http://www.nireland.com/IASCAIRELAND/

IASCA
- International Auto Sound Challenge Association official resource. Browse events listings and coverage, news, reviews and become a member.
- http://www.iasca.com/

USACi
- Official United States Autosound Competition International resource site. Offers news, events schedule, results and records listings.
- http://www.soundoff.org/