Hamradio – Organisations:

• ÖVSV – Österreichischer Versuchssenderverband
• ADL505 – the local chapter of the ÖVSV, which I’m member of
• AMRS – Austrian Military Radio Society
• ARRL – American Radio Relay League

Interesting info for Hams:

• Repeater – Database
• Calculator for VHF/UHF – Links
• Calculator for Geo-coordinates
• Bandplan – Database
• Directory of online WebSDRs
• ÖVSV Contestkalender
• WA7BNM Contest Calendar

Digimode-related sites:

• FLdigi – Software for digimodes
• Recognizing different types of digimodes
• Digimodes – Sounds & spectra

Packet, Hamnet & Co.:

• Paxon – Packetradio Terminal
• Soundmodem – UZ7HO
• FlexNet – AX.25 Stack ( © by Gunter Jost, DK7WJ )
• Winlink – Global Radio Email

Online logging and qsl:

• eQSL
• Logbook of the World
• QRZ.com
• Clublog
• QSOmap

…more to come soon…