1721 HF Roundtable Group
- An informal roundtable on 40-meters for all amateurs. Includes contact information and check-in times.
- http://www.hamuniverse.com/1721.html

Maritime Mobile Service Network
- Founded in 1968 and operating on 14.300, the MMSN is a network of radio amateurs meeting on 14.300 to serve maritime mobiles and deployed military primarily through traffic handling.
- http://mmsn.org/

South West Astronomy Observers Group
- A group of amateur astronomers who meet weekly on the DuPage ARC repeater to discuss their mutual interest - eMail, IRLP and EchoLink participation are permitted. Reports, event notices and the experiences of check-ins are always welcome. (DuPage, IL)
- http://www.swaog.com/

The Pacific Seafarer's Net
- A network of operators whose purpose is to provide support and assistance to boats at sea. In addition to traffic handling, tasks include conveyance of marine weather reports, phone patch service and rescue coordination.
- http://www.pacsea.org/

Interconnect Net
- Operating daily on 14.300, this group's purpose is to promote goodwill between operators and handle third-party traffic between approved countries and entities.
- http://www.interconnet.org/

Trans-Provincial Net
- Canada-based group resource features schedule of events of Canadian amateur groups, net meetings, repeaters, and HAM radio information.
- http://www.tpn7055.ca

7.272 Ragchew HF Net
- Informal HF group net features discussion of DX conditions, signal reports, events schedule and amateur radio information. All amateurs welcome.
- http://www.ragchewers.net/

Central Atlantic Amateur Television Network
- Resource for SSTV amateurs; meeting schedules, membership lists and information, repeater frequencies and links.
- http://www.qsl.net/caatn

Nightly Talk Around Net
- Promoting amateur radio with in-depth information, contest and QSL frequencies, contact list, and links.
- http://www.qsl.net/ntan