AERO Amateur Radio Club
- Middle River-based. Resource features club and meeting information, VE testing help, schedule of events and links.
- http://www.aeroarc.us/

Harford County Amateur Radio Emergency Communications
- Resource for disaster and emergency communications emergencies. Includes net schedules, repeater frequencies, club information, photos and links.
- http://www.harfordemcomm.org

Northeast Maryland Amateur Radio Club
- Harford County-based resource includes club and membership information, activities, homebrew plans and regional weather and disaster links.
- http://www.nemarc.org

Baltimore Amateur Radio Club
- Includes newsletter archive, testing session dates, and hamfest information.
- http://www.baltarc.com/

Columbia Amateur Radio Association
- Serves Howard County and site includes activity schedule, repeater list, newsletter archive, satellite information.
- http://www.columbiaara.org/

University of Maryland Amateur Radio Association
- Includes event schedule, officers, and club history.
- http://w3eax.umd.edu/

Carroll County Amateur Radio Club
- Includes information about the Westminster group and their events, newsletter, mailing list, articles, and links.
- http://www.qis.net/~k3pzn/

Antietam Radio Club
- Includes club and ARES/RACES information, upcoming events and links.
- http://www.w3cwc.org