UI-View32 Windows APRS Client
- Complete information on open-architecture, intelligent digi-peater and IGate. Works with TNCs in terminal mode, KISS mode, AGWPE and BPQ. Many map options.
- http://www.ui-view.org/

APRSearch
- Search engine focused on sites of documentation related to Automatic Position Reporting System (APRS).
- http://aprsearch.net/

CX2SA Radio
- Packet, APRS, DC cluster and frequency information, downloads and links.
- http://www.cx2sa.dyndns.org

pcboard.ca
- Canadian APRS system with Ontario and Canada APRS maps. Includes product details, downloads, data sheets and an order form.
- http://www.pcboard.ca

OpenAPRS
- Provides real-time APRS data in and around Napa, California.
- http://www.openaprs.net

APRS DB0ANF
- German access to an online station database. Includes APRS activity in Germany.
- http://www.db0anf.de

APRS Florida
- Server and repeater information, live Central Florida lightning and weather data.
- http://www.aprsfl.net

MM Hamsoft
- MMTTY -RTTY and MMSSTV SSTV freeware software.
- http://mmhamsoft.ham-radio.ch/

Research Triangle-Area Packet Radio
- North Carolina megaplex Packet resource for frequencies, nets, logs, listings, and local packet radio information.
- http://www.ipass.net/teara/index2.html

Introduction to APRS and UI-View
- An overview of APRS packet radio and an introduction to using UI-View and add-on software.
- http://homepage.ntlworld.com/ajmckinnon/

APRS-IS Information
- Resource for javAPRS, javAPRSSrvr, and the APRS weather server.
- http://www.aprs-is.net

Northern California Packet Association (NCPA)
- amateur packet radio club for northern California area
- http://www.n0ary.org/ncpa/

FlexNet
- Casual developers of software for Amateur Packet-Radio.
- http://www.afthd.tu-darmstadt.de/~flexnet

FBB
- Bulletin board software for amateur packet-radio.
- http://www.f6fbb.org/

78thFLOOR
- Rtty, cw, Pactor, Packet, SSTV, QRP and projects.
- http://digilander.libero.it/sozim/ham.html

W9ICU
- Packet APRS operator presents station and amateur information and links.
- http://www.w9icu.com

Wicklow DX-Cluster
- Packet DX-Cluster club in Bray County, Wicklow, Ireland.
- http://wdx.ath.cx

G4JKQ Amateur radio quicklinks page
- G4JKQ Amateur radio quicklinks page with a fast link to the main site which contains great links page with over 80 very interesting radio related sites. Also a quick link to the G4JKQ TCP/IP Worldwide Packet radio listings page.
- http://www.g4jkq.co.uk/

Tucson Amateur Packet Radio (TAPR)
- TAPR is an international non-profit educational research and development organization focused on the issues of amateur radio wireless digital communications.
- http://www.tapr.org

Southern Oregon Amateur Packet Radio Association
- Promoting packet in the mountainous region of Southern Oregon and Northern California.
- http://www.qsl.net/soar/SOAPRA/

Paxon: the Packet Radio terminal programm
- Paxon - The new Packet Radio terminal programm for Windows. Supports WA8DED-Hostmode and PC/FlexNet devices.
- http://www.paxon.net

APRS in Switzerland
- Provides information on APRS in Switzerland, maps and NEW:javAPRS live from HB9.
- http://www.qsl.net/hb9pvi/

NordLink
- Develops software under the German hamradio license. Amateurs, digipeaters, and FTP downloads available.
- http://www.nordlink.org/eng/index.htm

Bavarian Packet Radio Group
- Develops Hardware and Software.
- http://www.baycom.org/

javAPRS
- Java Applet for Automatic Position Reporting System.
- http://www.aprs.net/

Byonics
- Kits for GPS/APRS.
- http://www.byonics.com/

S51RM - S53RM
- Information resource for S5-PSK 1.2 Mbps BPSK packet radio station for 23 and 13cm (and 9cm), S5-70WB FM packet radio station for 70cm band and 19k2 to 76k8 bps, S5-PCC - packet communication card.
- http://lea.hamradio.si/~s53rm/

Utah Contest Club NC7J DX Packet Cluster Site
- Dx packet cluster also many links to amateur radio products
- http://nc7j.qrq.com/

K4ABT's Packet Radio Information
- Links to diagrams, products to buy, and tips and techniques.
- http://www.packetradio.com/

TH-D7 Informational Page
- Includes information on modifications, accessories, and operation of Kenwood's TH-D7 radio, a new packet-ready and GPS capable HT (TNC included).
- http://www.radiohound.com