PacketRadioMap.com – Map of active packet stations which is automatically updated – Very cool!
tarpn.net – Everything you’ll need to know about TARPN packet networking.
TARPN Email Group – A place for discussing the creation and operation of an over-the-air social network, based on VHF/UHF packet networking on Amateur Radio and ISM-band systems, built for educational, hobby and emergency preparedness purposes. This group is about making a new network that is divorced from commercial communications.
Other Packet Radio Networks
North Carolina Off-The-Grid Social Network – North Carolina packet radio network
Virginia Packet Network – The Virginia Packet Network (VAPN) is an AX.25/802.11 hybrid RF only system serving amateur radio interests in and around northern Virginia.
Winlink Global Radio Email – a network of amateur radio and authorized government-licensed stations that provides worldwide radio email using radio
Putty – PuTTY is an SSH and telnet client with serial communications capabilities.
Outpost Packet Message Manager – Outpost is a Windows-based packet message client that lets you send and receive packet messages with almost any Amateur Radio Bulletin Board System (BBS) or TNC Personal Mail Box.
Outpost video tutorials available here.