LINKS

Summits On The Air; SOTA

SOTA
SOTA Japan
SOTA watch
SOTA mapping

Electronic QSL Card or Confirmation

eQSL.cc (The  Electric QSL Card Centre)
LoTW (Logbook of The World)
QRZ.COM (Callsign Database)

Cluster

Band Plans in Japan (PDF file at JARL)
J-Cluster (Cluster for Japanese)
DX-WORLD
DXSCAPE

Tools

Time Converter (World Time)
PSK Automatic Propagation Reporter
QRZ Now
Callsign Search for Radio Amateur

CW Practice

NASA’s Morse Game
Learn CW Online (LCWO.net)
Morse Code and Phonetic Alphabets