Logbook of the world, lotw is a web-accessed database provided by the american radio relay league arrl radio amateurs hams can claim and verify contacts qsos

Club Log, a free web-based tool for producing DXCC league tables, expedition tools, log search services and most-wanted lists for ham radio

Hamlog.eu! this online database, called hamlog, can be used free of charge by any radio amateur worldwide

Supported by other popular log book programs, permit to publish a searchable contacts log, maps logs, and display a timeline of contacts

WWFF Logsearch part of the world-wide flora. search your call sign for any contacts done with the wff stations

eQSL stands for electronic QSL card and is a modern alternative to conventional QSL cards

Is an amateur radio callsign website, which houses almost every callsign in the world