» 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/
» Antietam Radio Club Includes club and ARES/RACES information, upcoming events and links. http://www.w3cwc.org
» Baltimore Amateur Radio Club Includes newsletter archive, testing session dates, and hamfest information. http://www.baltarc.com/
» 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/
» Columbia Amateur Radio Association Serves Howard County. Activity schedule, repeater list, newsletter archive, and satellite information. http://www.columbiaara.org/
» 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