LOCATOR FINDER - http://www.qrz.pl/mapa_locator.html

INTERNATIONAL CALLSIGNS INFO - http://www.qrz.com/

POLISH CALLSIGNS INFO - http://www.qrz.pl/

RADIO SOCIETY OF GREAT BRITAIN - http://www.rsgb.org/

UK REPEATERS - http://www.ukrepeater.net/index.html

WORLWIDE LIST OF HF BEACONS - http://www.keele.ac.uk/depts/por/28.htm

POLSKI ZWIAZEK KROTKOFALOWCOW - http://www.pzk.org.pl/news.php

REVERSE BEACON -. http://www.reversebeacon.net/main.php

WebSDR ON SEVEN BANDS (may not be operative at times) - http://websdr.ewi.utwente.nl:8901/

LEARN CW ONLINE -http://www.lcwo.net/

QTC - http://qtc.radio.org.pl/

POLSKIE FORUM KRÓTKOFALARSKIE - http://sp7pki.iq24.pl/default.asp

MAPA KRÓTKOFALOWCÓW - http://qrz.pl/mapa_big.asp?lat=50.87849970520631&lng=20.632688999176025&zoom=11