Here is a compilation of ham-related resources from around the web. If you are aware of other sources please let us know.

Licensing, Education, and Training: https://www.arrl.org/licensing-education-training
Manufacturers and Services: https://www.rfcafe.com/vendors/components/amateur-radio.htm
Propagation forecast: https://www.eham.net/propagation
Q-signals are three-letter combinations that represent common phrases or sentences for CW operation. Here is a list of the most commonly used codes, prepared by our own Travis N6DTE: https://n6dte.pw/latest/index.php?view=article&id=1:q-codes&catid=2
Hardware / Software / Resources: https://www.rfcafe.com/references/amateur-radio.htm
The KM6NHH Ham Radio Resource Page: https://www.friendlyskies.net/radio/