Here is my personal digest of interesting links to really valuable informations or interesting sites, obviously you can find all of them through Google after some time so take it just as my selection which might be useful some day to somebody who started after many years of “ham break” as I did in 2015.
https://www.wsprnet.org/drupal/wsprnet/activity
HAM Radio Software
https://n1mmwp.hamdocs.com (SW I’m using for my contesting effort)
https://dl2rum.de (SW for my standard logbook I’m using due to my Mac addiction..)