I use the following for QSL exchange/Logging
ARRL Logbook of the World (LoTW) – Uploaded weekly when active
eQSL.cc – Bi-Yearly Upload. I am sorry but I have trouble with eQSL and I am not a fan of their service. It’s very easy to cheat but I will upload to help out others
QRZ.com – Monthly uploads
Direct – If you send a card to my P.O Box I will reply with one. NO SASE needed. If you spent the money to send your card it’s only fair that I reply using my own postage.
At the moment I do not have any cards. That will change once I receive one.